(3x2-10)+(x2-3x+15)=0

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Solution for (3x2-10)+(x2-3x+15)=0 equation: 



(3x^2-10)+(x2-3x+15)=0

We add all the numbers together, and all the variables

(+x^2-3x+15)+(3x^2-10)=0

We get rid of parentheses

x^2+3x^2-3x+15-10=0

We add all the numbers together, and all the variables

4x^2-3x+5=0

a = 4; b = -3; c = +5;
Δ = b2-4ac
Δ = -32-4·4·5
Δ = -71
Delta is less than zero, so there is no solution for the equation

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