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-2(13x^2)+9(3x-7)-4=7-8
We move all terms to the left:
-2(13x^2)+9(3x-7)-4-(7-8)=0
We add all the numbers together, and all the variables
-213x^2+9(3x-7)-4-(-1)=0
We add all the numbers together, and all the variables
-213x^2+9(3x-7)-3=0
We multiply parentheses
-213x^2+27x-63-3=0
We add all the numbers together, and all the variables
-213x^2+27x-66=0
a = -213; b = 27; c = -66;
Δ = b2-4ac
Δ = 272-4·(-213)·(-66)
Δ = -55503
Delta is less than zero, so there is no solution for the equation
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