-2x(x+3)+5=15

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Solution for -2x(x+3)+5=15 equation:



-2x(x+3)+5=15
We move all terms to the left:
-2x(x+3)+5-(15)=0
We add all the numbers together, and all the variables
-2x(x+3)-10=0
We multiply parentheses
-2x^2-6x-10=0
a = -2; b = -6; c = -10;
Δ = b2-4ac
Δ = -62-4·(-2)·(-10)
Δ = -44
Delta is less than zero, so there is no solution for the equation

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