92=(7+x)(12+x)

Simple and best practice solution for 92=(7+x)(12+x) 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 92=(7+x)(12+x) equation:


Simplifying
92 = (7 + x)(12 + x)

Multiply (7 + x) * (12 + x)
92 = (7(12 + x) + x(12 + x))
92 = ((12 * 7 + x * 7) + x(12 + x))
92 = ((84 + 7x) + x(12 + x))
92 = (84 + 7x + (12 * x + x * x))
92 = (84 + 7x + (12x + x2))

Combine like terms: 7x + 12x = 19x
92 = (84 + 19x + x2)

Solving
92 = 84 + 19x + x2

Solving for variable 'x'.

Combine like terms: 92 + -84 = 8
8 + -19x + -1x2 = 84 + 19x + x2 + -84 + -19x + -1x2

Reorder the terms:
8 + -19x + -1x2 = 84 + -84 + 19x + -19x + x2 + -1x2

Combine like terms: 84 + -84 = 0
8 + -19x + -1x2 = 0 + 19x + -19x + x2 + -1x2
8 + -19x + -1x2 = 19x + -19x + x2 + -1x2

Combine like terms: 19x + -19x = 0
8 + -19x + -1x2 = 0 + x2 + -1x2
8 + -19x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
8 + -19x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-8 + 19x + x2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + 19x + 8 + x2 = 0 + 8

Reorder the terms:
-8 + 8 + 19x + x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 19x + x2 = 0 + 8
19x + x2 = 0 + 8

Combine like terms: 0 + 8 = 8
19x + x2 = 8

The x term is 19x.  Take half its coefficient (9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
19x + 90.25 + x2 = 8 + 90.25

Reorder the terms:
90.25 + 19x + x2 = 8 + 90.25

Combine like terms: 8 + 90.25 = 98.25
90.25 + 19x + x2 = 98.25

Factor a perfect square on the left side:
(x + 9.5)(x + 9.5) = 98.25

Calculate the square root of the right side: 9.912113801

Break this problem into two subproblems by setting 
(x + 9.5) equal to 9.912113801 and -9.912113801.

Subproblem 1

x + 9.5 = 9.912113801 Simplifying x + 9.5 = 9.912113801 Reorder the terms: 9.5 + x = 9.912113801 Solving 9.5 + x = 9.912113801 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + x = 9.912113801 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + x = 9.912113801 + -9.5 x = 9.912113801 + -9.5 Combine like terms: 9.912113801 + -9.5 = 0.412113801 x = 0.412113801 Simplifying x = 0.412113801

Subproblem 2

x + 9.5 = -9.912113801 Simplifying x + 9.5 = -9.912113801 Reorder the terms: 9.5 + x = -9.912113801 Solving 9.5 + x = -9.912113801 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + x = -9.912113801 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + x = -9.912113801 + -9.5 x = -9.912113801 + -9.5 Combine like terms: -9.912113801 + -9.5 = -19.412113801 x = -19.412113801 Simplifying x = -19.412113801

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.412113801, -19.412113801}

See similar equations:

| 3+35x=21x+15 | | 2(2)-y=7 | | (4x-5)+(6x+9)= | | 6x+8=-9 | | 149-v=206 | | b^2+9b-9=10b | | 3x+36=32 | | -5/3=3/5w-3/2 | | 3(4-n)=-n | | 3(4-2)=-n | | 5v^2-10v-2=0 | | (y^(1/3))/(y^(-3/2))(y^(1/2)) | | 5v^2-10v-2=o | | 2(3n-3)=(3n+1)+8 | | y=x^2-40x+700 | | 1/4y-1/6y=1/y^2 | | 41=9+x | | 5x+12y=-8 | | 57=(x+4)(x+2)-(x+2)x | | 5(2n-3)=(3n+9)+6 | | x^2+3x=201 | | 0=x^2-22.883721x | | 4x-9=x+7 | | x^2+9=201 | | 9p+2f+2p+2t= | | 8x=9-(-15) | | log(x)=7.21 | | 40+u=4u+5 | | 8x^5+16x^4-2x^3-4x^2=0 | | X^2+9=-11 | | x*55=11.99 | | 25+39x+5=50x-3 |

Equations solver categories