7=8+5x2

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Solution for 7=8+5x2 equation: 



7=8+5x^2

We move all terms to the left:

7-(8+5x^2)=0

We get rid of parentheses

-5x^2-8+7=0

We add all the numbers together, and all the variables

-5x^2-1=0

a = -5; b = 0; c = -1;
Δ = b2-4ac
Δ = 02-4·(-5)·(-1)
Δ = -20
Delta is less than zero, so there is no solution for the equation

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