(x+7)(x+7)=121

Simple and best practice solution for (x+7)(x+7)=121 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+7)(x+7)=121 equation: 


Simplifying
(x + 7)(x + 7) = 121

Reorder the terms:
(7 + x)(x + 7) = 121

Reorder the terms:
(7 + x)(7 + x) = 121

Multiply (7 + x) * (7 + x)
(7(7 + x) + x(7 + x)) = 121
((7 * 7 + x * 7) + x(7 + x)) = 121
((49 + 7x) + x(7 + x)) = 121
(49 + 7x + (7 * x + x * x)) = 121
(49 + 7x + (7x + x2)) = 121

Combine like terms: 7x + 7x = 14x
(49 + 14x + x2) = 121

Solving
49 + 14x + x2 = 121

Solving for variable 'x'.

Reorder the terms:
49 + -121 + 14x + x2 = 121 + -121

Combine like terms: 49 + -121 = -72
-72 + 14x + x2 = 121 + -121

Combine like terms: 121 + -121 = 0
-72 + 14x + x2 = 0

Factor a trinomial.
(-18 + -1x)(4 + -1x) = 0


Subproblem 1
Set the factor '(-18 + -1x)' equal to zero and attempt to solve:

Simplifying
-18 + -1x = 0

Solving
-18 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '18' to each side of the equation.
-18 + 18 + -1x = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -1x = 0 + 18
-1x = 0 + 18

Combine like terms: 0 + 18 = 18
-1x = 18

Divide each side by '-1'.
x = -18

Simplifying
x = -18

Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve:

Simplifying
4 + -1x = 0

Solving
4 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + -1x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 0 + -4
-1x = 0 + -4

Combine like terms: 0 + -4 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4
Solution
x = {-18, 4}

See similar equations:

| 6y+2y=8 | | =4100[1+.12(1)] | | 2n=115.3 | | x/11-6=9/22 | | 9a-5=4a-30 | | 10x-6=6x+10 | | 5(3n+1)=8(7n+6)+3 | | 3/4=x/1 | | y/2+5=-19 | | =5500[1+0.1(3)] | | -1=4n+3-5n | | 5x-2=45x+30 | | 0.45x+0.05(6-x)=0.10(-45) | | 3/5+2/5x+1/2x=6/5 | | y-6=5/6(x+12) | | T=3s+3.42 | | 5(2y-7)-15y=-10 | | 16q/20q^2 | | 2r-4r+7= | | 13-2x=3x+3 | | 14y-12y=8 | | 0.5x+3.5x-2.3-4.3=29.4 | | 19f^2+43f=0 | | 40=(.5)(.0005)(.0005) | | 4a+20=84 | | 40=(.5)(.0005)2 | | -84=8-4(-3x+2) | | x(10-X)=40 | | 138z/z+8z=324z/2z | | c=-384+12f | | -84-7x=8x-21 | | 2x-2y+16=12x-4 |

Equations solver categories