21(2x2+10)=30

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Solution for 21(2x2+10)=30 equation: 



21(2x^2+10)=30

We move all terms to the left:

21(2x^2+10)-(30)=0

We multiply parentheses

42x^2+210-30=0

We add all the numbers together, and all the variables

42x^2+180=0

a = 42; b = 0; c = +180;
Δ = b2-4ac
Δ = 02-4·42·180
Δ = -30240
Delta is less than zero, so there is no solution for the equation

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