0=x^2-8x+72

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Solution for 0=x^2-8x+72 equation: 



0=x^2-8x+72

We move all terms to the left:

0-(x^2-8x+72)=0

We add all the numbers together, and all the variables

-(x^2-8x+72)=0

We get rid of parentheses

-x^2+8x-72=0

We add all the numbers together, and all the variables

-1x^2+8x-72=0

a = -1; b = 8; c = -72;
Δ = b2-4ac
Δ = 82-4·(-1)·(-72)
Δ = -224
Delta is less than zero, so there is no solution for the equation

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