M(x)=-5x^2+50x-135

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Solution for M(x)=-5x^2+50x-135 equation: 



(M)=-5M^2+50M-135

We move all terms to the left:

(M)-(-5M^2+50M-135)=0

We get rid of parentheses

5M^2-50M+M+135=0

We add all the numbers together, and all the variables

5M^2-49M+135=0

a = 5; b = -49; c = +135;
Δ = b2-4ac
Δ = -492-4·5·135
Δ = -299
Delta is less than zero, so there is no solution for the equation

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