(x+3)*(x+2)=100

Simple and best practice solution for (x+3)*(x+2)=100 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+3)*(x+2)=100 equation:


Simplifying
(x + 3)(x + 2) = 100

Reorder the terms:
(3 + x)(x + 2) = 100

Reorder the terms:
(3 + x)(2 + x) = 100

Multiply (3 + x) * (2 + x)
(3(2 + x) + x(2 + x)) = 100
((2 * 3 + x * 3) + x(2 + x)) = 100
((6 + 3x) + x(2 + x)) = 100
(6 + 3x + (2 * x + x * x)) = 100
(6 + 3x + (2x + x2)) = 100

Combine like terms: 3x + 2x = 5x
(6 + 5x + x2) = 100

Solving
6 + 5x + x2 = 100

Solving for variable 'x'.

Reorder the terms:
6 + -100 + 5x + x2 = 100 + -100

Combine like terms: 6 + -100 = -94
-94 + 5x + x2 = 100 + -100

Combine like terms: 100 + -100 = 0
-94 + 5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '94' to each side of the equation.
-94 + 5x + 94 + x2 = 0 + 94

Reorder the terms:
-94 + 94 + 5x + x2 = 0 + 94

Combine like terms: -94 + 94 = 0
0 + 5x + x2 = 0 + 94
5x + x2 = 0 + 94

Combine like terms: 0 + 94 = 94
5x + x2 = 94

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = 94 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 94 + 6.25

Combine like terms: 94 + 6.25 = 100.25
6.25 + 5x + x2 = 100.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 100.25

Calculate the square root of the right side: 10.012492197

Break this problem into two subproblems by setting 
(x + 2.5) equal to 10.012492197 and -10.012492197.

Subproblem 1

x + 2.5 = 10.012492197 Simplifying x + 2.5 = 10.012492197 Reorder the terms: 2.5 + x = 10.012492197 Solving 2.5 + x = 10.012492197 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 10.012492197 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 10.012492197 + -2.5 x = 10.012492197 + -2.5 Combine like terms: 10.012492197 + -2.5 = 7.512492197 x = 7.512492197 Simplifying x = 7.512492197

Subproblem 2

x + 2.5 = -10.012492197 Simplifying x + 2.5 = -10.012492197 Reorder the terms: 2.5 + x = -10.012492197 Solving 2.5 + x = -10.012492197 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -10.012492197 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -10.012492197 + -2.5 x = -10.012492197 + -2.5 Combine like terms: -10.012492197 + -2.5 = -12.512492197 x = -12.512492197 Simplifying x = -12.512492197

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.512492197, -12.512492197}

See similar equations:

| 4y-16-7=6y-9-6y | | 3m-2=m+4 | | 5x-2+3(x-11)=4 | | D-(2d+1)= | | 2a(a-3)+5a(2a+7)= | | 3m+(m+2)=-(2m-5) | | 7t+3=4t+15 | | 2cos^2(3x)-2=0 | | -2(x-9)=-9 | | 8x+-3=27+-2x | | x+(x*0.15)=10000 | | 5x+2-h=22 | | 5x+2-h=2 | | sinx=0.62 | | 12m^2+17m+6=0 | | -8=x+3z | | -0.60(40)+0.60x=0.20(40+x) | | 11x=10x+4 | | 9xsquared-12x+4=0 | | 2.4x+1.25-0.004=3.71+13.5 | | -ay=-2x-3b | | a^5+8=13 | | 8x-9x=-5+9 | | 2x=ay-3b | | 4(7w-3)=62 | | -(2x+3)-3-2x=0 | | 13+4=917 | | x-2y-x^2+4y^2=0 | | x-2y-x^2+4y=0 | | (e+4)a*5=45 | | 4/9(3s-6v) | | (3m-2)+(m^2+2m-26)+(10-3m^2)+(10-2m^2)= |

Equations solver categories