x^2+4x=45

Simple and best practice solution for x^2+4x=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+4x=45 equation:


Simplifying
x2 + 4x = 45

Reorder the terms:
4x + x2 = 45

Solving
4x + x2 = 45

Solving for variable 'x'.

Reorder the terms:
-45 + 4x + x2 = 45 + -45

Combine like terms: 45 + -45 = 0
-45 + 4x + x2 = 0

Factor a trinomial.
(-9 + -1x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-9 + -1x)' equal to zero and attempt to solve: Simplifying -9 + -1x = 0 Solving -9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1x = 0 + 9 -1x = 0 + 9 Combine like terms: 0 + 9 = 9 -1x = 9 Divide each side by '-1'. x = -9 Simplifying x = -9

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-9, 5}

See similar equations:

| x+.5x=3.25 | | 36b^2-192b+256=0 | | -(3-x)=-7 | | (-16*4)-34=30 | | 6x^2-5x+4=0 | | 6-9x=106-44x | | 3X+14=6X+11 | | -2-6=8-8x | | (-3X)+40=38 | | 12*7+12*3= | | n-42=1.63 | | .83x-(-0.2)+4=.7 | | 9a^2-48a+36+28=0 | | 2(3+n)+4= | | 3+11x=123+x | | 2x-4=12x-114 | | 4=a+1.8 | | a-b=-c | | 4x+132=5x+30 | | (5+-1y)+3y=9 | | 4x+132=5x+133 | | 3(y+1)(-1-3y)=4y-2(y+1) | | 4(x+6)=100 | | (-3x)+3=18 | | -x+42=-4x | | 13(x+6)-3=3x-5 | | 36-3x=45 | | 62x+(3)(4)=74 | | 6-4(3+x)=6 | | 1-6x=13-10x | | 7x-8y=91 | | 4x+30=7x-9 |

Equations solver categories