-2x(x+3)+5=15

Simple and best practice solution for -2x(x+3)+5=15 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

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



-2x(x+3)+5=15

We move all terms to the left:

-2x(x+3)+5-(15)=0

We add all the numbers together, and all the variables

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

We multiply parentheses

-2x^2-6x-10=0

a = -2; b = -6; c = -10;
Δ = b2-4ac
Δ = -62-4·(-2)·(-10)
Δ = -44
Delta is less than zero, so there is no solution for the equation

See similar equations:

| g.6-3g=21 | | 6−y=–6−y | | 7v^2+8v-80=0 | | -1=9-2y | | -7(x+6)+46=8-8x | | 12x+15=33-2x | | 20+5x=45x | | 7+r/3=5 | | 4x-48=10x | | r−4=–7+4r | | 95-4d=15d | | 6-3g=21 | | 36-19v=-10v | | 8f+9=28 | | 8x-3-4x=-9x | | 13q=24-7q | | Y=4x=-3 | | 5y=30-5y | | -7(y+1)-6=-41y+55 | | 5s+4=4s | | 3y+y5=11+1 | | 9c+8=9c+1 | | 3x+2x+5=-10 | | 4z/7+7=-7 | | 4@-3(a-2)=2(3a-2) | | x-4/8=7/4 | | -1/3t=3/4 | | 6x-4=8x+20 | | s/2=5.5 | | 49x^2+21x+9/4=0 | | c.4c=-36 | | -43=12-5x |

Equations solver categories