-9(x+2)(x+2)=(x-7)(x-7)

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Solution for -9(x+2)(x+2)=(x-7)(x-7) equation:



-9(x+2)(x+2)=(x-7)(x-7)
We move all terms to the left:
-9(x+2)(x+2)-((x-7)(x-7))=0
We multiply parentheses ..
-9(+x^2+2x+2x+4)-((x-7)(x-7))=0
We calculate terms in parentheses: -((x-7)(x-7)), so:
(x-7)(x-7)
We multiply parentheses ..
(+x^2-7x-7x+49)
We get rid of parentheses
x^2-7x-7x+49
We add all the numbers together, and all the variables
x^2-14x+49
Back to the equation:
-(x^2-14x+49)
We multiply parentheses
-9x^2-18x-18x-(x^2-14x+49)-36=0
We get rid of parentheses
-9x^2-x^2-18x-18x+14x-49-36=0
We add all the numbers together, and all the variables
-10x^2-22x-85=0
a = -10; b = -22; c = -85;
Δ = b2-4ac
Δ = -222-4·(-10)·(-85)
Δ = -2916
Delta is less than zero, so there is no solution for the equation

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