11x+21=2x^2

Simple and best practice solution for 11x+21=2x^2 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 11x+21=2x^2 equation:


Simplifying
11x + 21 = 2x2

Reorder the terms:
21 + 11x = 2x2

Solving
21 + 11x = 2x2

Solving for variable 'x'.

Combine like terms: 2x2 + -2x2 = 0
21 + 11x + -2x2 = 0

Factor a trinomial.
(7 + -1x)(3 + 2x) = 0

Subproblem 1

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Subproblem 2

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Solution

x = {7, -1.5}

See similar equations:

| 3+2x-(x-(-1))=2x+(-2)-(-x) | | -2f+-4=4 | | 7(5a-b)-6(2b-7a)= | | x^2-bx+27=0 | | 12=6(-8+n) | | 6y+2-5y^3=0 | | 5x-60=1440 | | -4(0.2x+0.3)-1.3=-0.1 | | x^2+9x+14=6 | | 2x^3-24x+32=0 | | -10-3x=50 | | 4x=6*12 | | 4x-60=1100 | | -4(-6)(-2)(1)= | | 4x-50=1200 | | 4x-50=600 | | 3p+2=-1 | | -2-v=-12 | | 2.1x=1.68 | | 4x-60=510 | | 2(3g+2)=12g+8 | | 0.05m-0.08m+m=0.97 | | 20=n+3 | | v-9=-7(v-1) | | 4x-60=300 | | -12z^5+10z^4+8z^3=0 | | 2(x+9)-10=34 | | -2(n+6)=8 | | x+6(-5x-8)=10 | | 27x+24=10x-24 | | -35-(-93)= | | x+14x+45=0 |

Equations solver categories