(X+2)(X-3)=72

Simple and best practice solution for (X+2)(X-3)=72 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)(X-3)=72 equation:


Simplifying
(X + 2)(X + -3) = 72

Reorder the terms:
(2 + X)(X + -3) = 72

Reorder the terms:
(2 + X)(-3 + X) = 72

Multiply (2 + X) * (-3 + X)
(2(-3 + X) + X(-3 + X)) = 72
((-3 * 2 + X * 2) + X(-3 + X)) = 72
((-6 + 2X) + X(-3 + X)) = 72
(-6 + 2X + (-3 * X + X * X)) = 72
(-6 + 2X + (-3X + X2)) = 72

Combine like terms: 2X + -3X = -1X
(-6 + -1X + X2) = 72

Solving
-6 + -1X + X2 = 72

Solving for variable 'X'.

Reorder the terms:
-6 + -72 + -1X + X2 = 72 + -72

Combine like terms: -6 + -72 = -78
-78 + -1X + X2 = 72 + -72

Combine like terms: 72 + -72 = 0
-78 + -1X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '78' to each side of the equation.
-78 + -1X + 78 + X2 = 0 + 78

Reorder the terms:
-78 + 78 + -1X + X2 = 0 + 78

Combine like terms: -78 + 78 = 0
0 + -1X + X2 = 0 + 78
-1X + X2 = 0 + 78

Combine like terms: 0 + 78 = 78
-1X + X2 = 78

The X term is -1X.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1X + 0.25 + X2 = 78 + 0.25

Reorder the terms:
0.25 + -1X + X2 = 78 + 0.25

Combine like terms: 78 + 0.25 = 78.25
0.25 + -1X + X2 = 78.25

Factor a perfect square on the left side:
(X + -0.5)(X + -0.5) = 78.25

Calculate the square root of the right side: 8.845903006

Break this problem into two subproblems by setting 
(X + -0.5) equal to 8.845903006 and -8.845903006.

Subproblem 1

X + -0.5 = 8.845903006 Simplifying X + -0.5 = 8.845903006 Reorder the terms: -0.5 + X = 8.845903006 Solving -0.5 + X = 8.845903006 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + X = 8.845903006 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + X = 8.845903006 + 0.5 X = 8.845903006 + 0.5 Combine like terms: 8.845903006 + 0.5 = 9.345903006 X = 9.345903006 Simplifying X = 9.345903006

Subproblem 2

X + -0.5 = -8.845903006 Simplifying X + -0.5 = -8.845903006 Reorder the terms: -0.5 + X = -8.845903006 Solving -0.5 + X = -8.845903006 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + X = -8.845903006 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + X = -8.845903006 + 0.5 X = -8.845903006 + 0.5 Combine like terms: -8.845903006 + 0.5 = -8.345903006 X = -8.345903006 Simplifying X = -8.345903006

Solution

The solution to the problem is based on the solutions from the subproblems. X = {9.345903006, -8.345903006}

See similar equations:

| 13-6x=-8x+3 | | 4-0.89= | | 2+5x=8+3x | | x^2+184-1940=0 | | (5x+2)-1=(1-2x) | | 2x^2+36x-80=0 | | 2xsquared+36x-80=0 | | 7(x+3)-12(x-12)= | | 8x-24-6+2x=2x+4-25+5x | | 8+3x-4=9x+8-5x | | 7x+8-9x=15-16x+14x-7 | | (X-3)+(X+4)=1 | | 10(t-3)+8t=6(3t+4)-10 | | 7p^2-48p-7= | | 18=3-3a | | 2x+10-4x+2x=6x+4-4x | | 6x-5y=-23 | | 3(8y-6)-(4y+3)= | | 15+43x=43x+15 | | 57x+140=54x-100 | | 5(4n-1)= | | 25n-21=14 | | x^2+4=6x-1 | | 7x+6x-2x-5x=17+x+8 | | 2x^2+bx+12= | | -21+25=14 | | 7a^2-39a+20= | | 4(y+8)-5=51 | | 2x^2+b+12= | | 0.0035x=0.2-0.002x | | 4w-29=-29-4w | | 2y-2=11y+34 |

Equations solver categories