-13=5(1+4m)12m

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Solution for -13=5(1+4m)12m equation: 



-13=5(1+4m)12m

We move all terms to the left:

-13-(5(1+4m)12m)=0

We add all the numbers together, and all the variables

-(5(4m+1)12m)-13=0



We calculate terms in parentheses: -(5(4m+1)12m), so:

5(4m+1)12m

We multiply parentheses

240m^2+60m

Back to the equation:

-(240m^2+60m)



We get rid of parentheses

-240m^2-60m-13=0

a = -240; b = -60; c = -13;
Δ = b2-4ac
Δ = -602-4·(-240)·(-13)
Δ = -8880
Delta is less than zero, so there is no solution for the equation

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