x^2=12x+45

Simple and best practice solution for x^2=12x+45 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 x^2=12x+45 equation:


Simplifying
x2 = 12x + 45

Reorder the terms:
x2 = 45 + 12x

Solving
x2 = 45 + 12x

Solving for variable 'x'.

Reorder the terms:
-45 + -12x + x2 = 45 + 12x + -45 + -12x

Reorder the terms:
-45 + -12x + x2 = 45 + -45 + 12x + -12x

Combine like terms: 45 + -45 = 0
-45 + -12x + x2 = 0 + 12x + -12x
-45 + -12x + x2 = 12x + -12x

Combine like terms: 12x + -12x = 0
-45 + -12x + x2 = 0

Factor a trinomial.
(-3 + -1x)(15 + -1x) = 0

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 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 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(15 + -1x)' equal to zero and attempt to solve: Simplifying 15 + -1x = 0 Solving 15 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -1x = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -1x = 0 + -15 -1x = 0 + -15 Combine like terms: 0 + -15 = -15 -1x = -15 Divide each side by '-1'. x = 15 Simplifying x = 15

Solution

x = {-3, 15}

See similar equations:

| 1-(4-x)=(x+1) | | 12-x=2(x-2)+x | | 3x-(19-4x)+14=7x-(2x-7) | | 12-x=2(x-2) | | 5(x+1)=2x+6 | | 3(w+5)=-15 | | 12=(25-x)-(19-2x) | | 5=5x+274 | | 10x-1=8x | | 7x-8=55 | | 10a+12a-2= | | 2(x-1)=6-x | | 2q^2+25=0 | | -3.7w=-11.1 | | -12.5=4n | | -1.5x=6 | | 3x-2=2x+1 | | 42+10x-6=12x-12 | | 2q^2+25= | | 3x-1=x-3 | | -12b=-288 | | -21=-2x | | (4-5x)+(10+6x)=8 | | 12d^2-8d^2= | | 12d^2+12d^2= | | 2x+10=x+82 | | r^2+r^2= | | 7t+3t-5t= | | p=2d+2c | | a+3.2=-0.2 | | (x-4)(8x+2)=-22(x-4) | | x^2-x=24 |

Equations solver categories