Simplify (n-4)/(n^2-n-20)+(n+1)/(n^2-n-20). We learn how to simplify (n-4)/(n^2-n-20)+(n+1)/(n^2-n-20) in this free online math video lesson on Adding and Subtracting Rational Expressions. This video explains how to add a rational expression and how to subtract a rational expression and simplify each expression. We have to find a common denominator before we add or subtract the rational expression (n-4)/(n^2-n-20)+(n+1)/(n^2-n-20). #addingrationalexpressions #subtractingrationalexpressions #minutemath
In this math video lesson on Scientific Notation, I write 175 in scientific notation. #scientificnotation #prealgebra #minutemath
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https://www.youtube.com/watch?v=i0BDsKgcr0Y
Normal Lines. Find the equation of the line normal to the function. We learn how to find the equation of the normal line through various examples. We learn how to find the equation of the line normal to the function at a given value. The normal line is the perpendicular line of the tangent line at the given point. If the normal line is a vertical line, indicate so. Our answer is in slope-intercept form. In this video, we review how to find the normal line of a function at a given point. We use common derivative properties to solve the derivative of the function which we use to find the slope of a function at a given value. We then find the perpendicular slope. We then find the y-intercept of the normal line to find the full equation of the line normal in slope-intercept form. This is a great introduction into derivatives. This is under the topic of Applications of Differentiation with this free online math video lesson. #normallines #findthenormalline #derivatives #normallineatagivenpoint #findthederivative #calculus #calculushelp #minutemath #minutemathhelp #onlinemathlessons
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Logarithmic Equations. We learn how to solve log_6 (x+1)-log_6 (x)=log_6 (29). We learn how to solve the logarithmic equation log_6 (x+1)-log_6 (x)=log_6 (29). This is a great introduction into logarithmic functions and how to solve logarithmic equations. This is under the topic of Exponential and Logarithmic Functions with this free online math video lesson. #logarithmicequations #logarithms #solve #onlinemathlessons #minutemath #algebra2
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Exponential Equations Not Requiring Logarithms. We learn how to solve 16^(2p-3)*4^(-2p)=2^4 We learn how to solve the exponential equation 16^(2p-3)*4^(-2p)=2^4 not requiring logarithms. This is a great introduction into exponential functions and how to solve exponential equations. This is under the topic of Exponential and Logarithmic Functions with this free online math video lesson. #exponentialequations #solve #onlinemathlessons #minutemath #algebra2
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In this math video lesson on Radical Equations I solve the equation r=sqrt(-1-2r). This video discusses how to solve a radical equation (square root equation) for a variable and check for extraneous solutions. #radicalequations #squarerootequations #extraneoussolutions #algebra1
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https://www.youtube.com/watch?v=72SkuQ6pf3Q
Do you know there is a math trick for multiplying by 12? In this video we show you how to multiply by 12 to numbers 15 through 19 using this multiplication trick. This is part 59 of our Minute Math Tricks Series.
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A math video lesson on Differentiation - Chain Rule which is a topic on Derivatives in Calculus. This video discusses how to differentiate each function with respect to x by using repetition to help students retain what they have learned. This is a good skill for students in Calculus. #derivatives #chainrule #calculus
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https://www.youtube.com/watch?v=taHYOWy9hs4
Derivative at a Value. Find the derivative of y=x^2+4x at x=-5. We learn how to find the derivative of y=x^2+4x at x=-5. We learn how to find the derivative of a function at a given value. In this video, we review how to find the derivative of a function and what is the derivative of that function at a given value. We use common derivative properties to solve the derivative of the function. This is a great introduction into derivatives. This is under the topic of Applications of Differentiation with this free online math video lesson. #derivatives #derivativeatavalue #findthederivative #calculus #calculushelp #minutemath #minutemathhelp #onlinemathlessons
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https://www.youtube.com/watch?v=CXX5C2_EX_E
In this math video lesson on Exponents and Division, I simplify (11u^4)/(17u^7v^9) (the answer should contain only positive exponents). #exponentsanddivision #prealgebra #minutemath
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https://www.youtube.com/watch?v=iYxGDZXwd1I