x^2+5x-16=3(2x-3)

Simple and best practice solution for x^2+5x-16=3(2x-3) 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+5x-16=3(2x-3) equation:


Simplifying
x2 + 5x + -16 = 3(2x + -3)

Reorder the terms:
-16 + 5x + x2 = 3(2x + -3)

Reorder the terms:
-16 + 5x + x2 = 3(-3 + 2x)
-16 + 5x + x2 = (-3 * 3 + 2x * 3)
-16 + 5x + x2 = (-9 + 6x)

Solving
-16 + 5x + x2 = -9 + 6x

Solving for variable 'x'.

Reorder the terms:
-16 + 9 + 5x + -6x + x2 = -9 + 6x + 9 + -6x

Combine like terms: -16 + 9 = -7
-7 + 5x + -6x + x2 = -9 + 6x + 9 + -6x

Combine like terms: 5x + -6x = -1x
-7 + -1x + x2 = -9 + 6x + 9 + -6x

Reorder the terms:
-7 + -1x + x2 = -9 + 9 + 6x + -6x

Combine like terms: -9 + 9 = 0
-7 + -1x + x2 = 0 + 6x + -6x
-7 + -1x + x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
-7 + -1x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '7' to each side of the equation.
-7 + -1x + 7 + x2 = 0 + 7

Reorder the terms:
-7 + 7 + -1x + x2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1x + x2 = 0 + 7
-1x + x2 = 0 + 7

Combine like terms: 0 + 7 = 7
-1x + x2 = 7

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 = 7 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 7 + 0.25

Combine like terms: 7 + 0.25 = 7.25
0.25 + -1x + x2 = 7.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 7.25

Calculate the square root of the right side: 2.692582404

Break this problem into two subproblems by setting 
(x + -0.5) equal to 2.692582404 and -2.692582404.

Subproblem 1

x + -0.5 = 2.692582404 Simplifying x + -0.5 = 2.692582404 Reorder the terms: -0.5 + x = 2.692582404 Solving -0.5 + x = 2.692582404 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 = 2.692582404 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 2.692582404 + 0.5 x = 2.692582404 + 0.5 Combine like terms: 2.692582404 + 0.5 = 3.192582404 x = 3.192582404 Simplifying x = 3.192582404

Subproblem 2

x + -0.5 = -2.692582404 Simplifying x + -0.5 = -2.692582404 Reorder the terms: -0.5 + x = -2.692582404 Solving -0.5 + x = -2.692582404 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 = -2.692582404 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -2.692582404 + 0.5 x = -2.692582404 + 0.5 Combine like terms: -2.692582404 + 0.5 = -2.192582404 x = -2.192582404 Simplifying x = -2.192582404

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.192582404, -2.192582404}

See similar equations:

| -2=7(9+2)+3(2q-1) | | 7x+8+7x=50 | | -0.5x^2+3=-5x-2 | | 3x+4(8x-15)=10 | | -8*3+5= | | 5x-21=35 | | 7x+4=-108 | | x^3-3x^2=-3 | | 2x-x=-1 | | 12x-17=121 | | 24x^2+6=24x | | 30x+3=10-5x | | 3.1+2m=6.3 | | 0=-y+4 | | (x-2)(x+1)=2x+4x | | 7x=549 | | 12w=60 | | 4y-2y=10 | | x=-0+4 | | 60w=12 | | y=-.5+1.5x | | 4x=336 | | 16-(-5)+4= | | 3x^2-300x^2-20x+100= | | 6(y+6)+y=3(y+4)-4 | | (x-2)(x+1)=x(2)+4x | | 3x-2=-35 | | 4x+31=75 | | 16-(-5)+5= | | 7(8-x)=35 | | 1.5x-15=21 | | d-2.7-2d=-2.0 |

Equations solver categories