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Simplify the expression $\left(x-5\right)\left(x+5\right)+1\cdot -5\left(x-6\right)=x-4$

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 Solution

 Videos

Tutorial - Solving a rational Equation ex 6, 4/2x = 5/(x+6)

https://www.youtube.com/watch?v=trKSTwmv2ss

Equations with rational expressions | Mathematics III | High School Math | Khan Academy

https://www.youtube.com/watch?v=McOMtxI_Jzs

Algebra 1 - Using order of operation on a quotient - Free Math Videos (5^2 4 – 54^2) / 5(4)

https://www.youtube.com/watch?v=Vxn_2d3h3Jg

Tutorial - How to solve a basic rational expression with x in the denominator twice, (5/x) + 2 = 6/x

https://www.youtube.com/watch?v=ZkXP_ozzr2Y

Calculus - Learn how to take derivative using quotient rule by simplifying first, f(x)=x(1- 4/(x+3))

https://www.youtube.com/watch?v=Mqjiw5Ax_4w

Tutorial - Evaluating an expression with one variable ex 8, (-x^2 +1)/3; x = 3

https://www.youtube.com/watch?v=mCQunJV8kU4

 Main Topic: Simplification of algebraic expressions

The simplification of algebraic expressions consists in rewriting a long and complex expression in an equivalent, but much simpler expression. This simplification can be accomplished through the combined use of arithmetic and algebra rules.

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