9x2-2x+25=8x2+8x

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Solution for 9x2-2x+25=8x2+8x equation: 



9x^2-2x+25=8x^2+8x

We move all terms to the left:

9x^2-2x+25-(8x^2+8x)=0

We get rid of parentheses

9x^2-8x^2-2x-8x+25=0

We add all the numbers together, and all the variables

x^2-10x+25=0

a = 1; b = -10; c = +25;
Δ = b2-4ac
Δ = -102-4·1·25
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{10}{2}=5$

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