(x+5)*(3-x)=x-2

Simple and best practice solution for (x+5)*(3-x)=x-2 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+5)*(3-x)=x-2 equation:


Simplifying
(x + 5)(3 + -1x) = x + -2

Reorder the terms:
(5 + x)(3 + -1x) = x + -2

Multiply (5 + x) * (3 + -1x)
(5(3 + -1x) + x(3 + -1x)) = x + -2
((3 * 5 + -1x * 5) + x(3 + -1x)) = x + -2
((15 + -5x) + x(3 + -1x)) = x + -2
(15 + -5x + (3 * x + -1x * x)) = x + -2
(15 + -5x + (3x + -1x2)) = x + -2

Combine like terms: -5x + 3x = -2x
(15 + -2x + -1x2) = x + -2

Reorder the terms:
15 + -2x + -1x2 = -2 + x

Solving
15 + -2x + -1x2 = -2 + x

Solving for variable 'x'.

Reorder the terms:
15 + 2 + -2x + -1x + -1x2 = -2 + x + 2 + -1x

Combine like terms: 15 + 2 = 17
17 + -2x + -1x + -1x2 = -2 + x + 2 + -1x

Combine like terms: -2x + -1x = -3x
17 + -3x + -1x2 = -2 + x + 2 + -1x

Reorder the terms:
17 + -3x + -1x2 = -2 + 2 + x + -1x

Combine like terms: -2 + 2 = 0
17 + -3x + -1x2 = 0 + x + -1x
17 + -3x + -1x2 = x + -1x

Combine like terms: x + -1x = 0
17 + -3x + -1x2 = 0

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

Divide each side by '-1'.
-17 + 3x + x2 = 0

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + 3x + 17 + x2 = 0 + 17

Reorder the terms:
-17 + 17 + 3x + x2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + 3x + x2 = 0 + 17
3x + x2 = 0 + 17

Combine like terms: 0 + 17 = 17
3x + x2 = 17

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 17 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 17 + 2.25

Combine like terms: 17 + 2.25 = 19.25
2.25 + 3x + x2 = 19.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 19.25

Calculate the square root of the right side: 4.387482194

Break this problem into two subproblems by setting 
(x + 1.5) equal to 4.387482194 and -4.387482194.

Subproblem 1

x + 1.5 = 4.387482194 Simplifying x + 1.5 = 4.387482194 Reorder the terms: 1.5 + x = 4.387482194 Solving 1.5 + x = 4.387482194 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 4.387482194 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 4.387482194 + -1.5 x = 4.387482194 + -1.5 Combine like terms: 4.387482194 + -1.5 = 2.887482194 x = 2.887482194 Simplifying x = 2.887482194

Subproblem 2

x + 1.5 = -4.387482194 Simplifying x + 1.5 = -4.387482194 Reorder the terms: 1.5 + x = -4.387482194 Solving 1.5 + x = -4.387482194 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -4.387482194 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -4.387482194 + -1.5 x = -4.387482194 + -1.5 Combine like terms: -4.387482194 + -1.5 = -5.887482194 x = -5.887482194 Simplifying x = -5.887482194

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.887482194, -5.887482194}

See similar equations:

| 3(5c+1)-12=13c+13 | | 1/7x-2/3=-3/2 | | 5v-10=45 | | 16x^2*16x^2+16x*16x=256 | | 3x+2(3x+-10)=16 | | 3+2(3x-5)=-3(3x-3)+x | | 11+3p=13 | | 6x+0.3-3.8x-0.3x+4= | | 5a+3b=10c | | -5(x+3)=-6x | | 4x-6(2x-3(5x-8))=20 | | 2v+2-2(-6v-3)=2(v-3) | | 3-6(x-3)=33 | | Cos(2x)-5cosx=2 | | -2(x+-4)=8 | | 8x=8x+8 | | .7+0.25x=8.2 | | 0.25d-3D+0.7(d-1)=4.25 | | -3(-7y+7)-3y=2(y-5)-3 | | 4x-5+2x-5=105 | | 7(v+2)=-4(3v-2)+5v | | -21+0-25= | | y=4x^2-32x+61 | | 4h+16t+14u= | | 3(2x-4)+18=0 | | -5u-3=-3(u-3) | | 4+5(0)-25=0 | | 5(x+3)-5=0 | | -6(u+3)=-3u-30 | | -9x+5x+17-10x= | | (X-2)+(x-2)+5(0)-25=0 | | 28+19x=-8+15xsimplfy |

Equations solver categories