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2(4x-2)(2-x)=100
We move all terms to the left:
2(4x-2)(2-x)-(100)=0
We add all the numbers together, and all the variables
2(4x-2)(-1x+2)-100=0
We multiply parentheses ..
2(-4x^2+8x+2x-4)-100=0
We multiply parentheses
-8x^2+16x+4x-8-100=0
We add all the numbers together, and all the variables
-8x^2+20x-108=0
a = -8; b = 20; c = -108;
Δ = b2-4ac
Δ = 202-4·(-8)·(-108)
Δ = -3056
Delta is less than zero, so there is no solution for the equation
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