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4x(12-10x)=8(4x+1)
We move all terms to the left:
4x(12-10x)-(8(4x+1))=0
We add all the numbers together, and all the variables
4x(-10x+12)-(8(4x+1))=0
We multiply parentheses
-40x^2+48x-(8(4x+1))=0
We calculate terms in parentheses: -(8(4x+1)), so:We get rid of parentheses
8(4x+1)
We multiply parentheses
32x+8
Back to the equation:
-(32x+8)
-40x^2+48x-32x-8=0
We add all the numbers together, and all the variables
-40x^2+16x-8=0
a = -40; b = 16; c = -8;
Δ = b2-4ac
Δ = 162-4·(-40)·(-8)
Δ = -1024
Delta is less than zero, so there is no solution for the equation
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