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X^2+16X+15=10X+4
We move all terms to the left:
X^2+16X+15-(10X+4)=0
We get rid of parentheses
X^2+16X-10X-4+15=0
We add all the numbers together, and all the variables
X^2+6X+11=0
a = 1; b = 6; c = +11;
Δ = b2-4ac
Δ = 62-4·1·11
Δ = -8
Delta is less than zero, so there is no solution for the equation
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