5(7+3x)=12-15x^2

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Solution for 5(7+3x)=12-15x^2 equation: 



5(7+3x)=12-15x^2

We move all terms to the left:

5(7+3x)-(12-15x^2)=0

We add all the numbers together, and all the variables

-(12-15x^2)+5(3x+7)=0

We multiply parentheses

-(12-15x^2)+15x+35=0

We get rid of parentheses

15x^2+15x-12+35=0

We add all the numbers together, and all the variables

15x^2+15x+23=0

a = 15; b = 15; c = +23;
Δ = b2-4ac
Δ = 152-4·15·23
Δ = -1155
Delta is less than zero, so there is no solution for the equation

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