(2x+5)*(5x+5)-2x*5x=305

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Solution for (2x+5)*(5x+5)-2x*5x=305 equation: 



(2x+5)(5x+5)-2x*5x=305

We move all terms to the left:

(2x+5)(5x+5)-2x*5x-(305)=0

Wy multiply elements

-10x^2+(2x+5)(5x+5)-305=0

We multiply parentheses ..

-10x^2+(+10x^2+10x+25x+25)-305=0

We get rid of parentheses

-10x^2+10x^2+10x+25x+25-305=0

We add all the numbers together, and all the variables

35x-280=0

We move all terms containing x to the left, all other terms to the right

35x=280

x=280/35

x=8

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