10v(v-3)=-10v-90

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Solution for 10v(v-3)=-10v-90 equation: 



10v(v-3)=-10v-90

We move all terms to the left:

10v(v-3)-(-10v-90)=0

We multiply parentheses

10v^2-30v-(-10v-90)=0

We get rid of parentheses

10v^2-30v+10v+90=0

We add all the numbers together, and all the variables

10v^2-20v+90=0

a = 10; b = -20; c = +90;
Δ = b2-4ac
Δ = -202-4·10·90
Δ = -3200
Delta is less than zero, so there is no solution for the equation

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