9x^2+24x=64

Simple and best practice solution for 9x^2+24x=64 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 9x^2+24x=64 equation:


Simplifying
9x2 + 24x = 64

Reorder the terms:
24x + 9x2 = 64

Solving
24x + 9x2 = 64

Solving for variable 'x'.

Reorder the terms:
-64 + 24x + 9x2 = 64 + -64

Combine like terms: 64 + -64 = 0
-64 + 24x + 9x2 = 0

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

Divide each side by '9'.
-7.111111111 + 2.666666667x + x2 = 0

Move the constant term to the right:

Add '7.111111111' to each side of the equation.
-7.111111111 + 2.666666667x + 7.111111111 + x2 = 0 + 7.111111111

Reorder the terms:
-7.111111111 + 7.111111111 + 2.666666667x + x2 = 0 + 7.111111111

Combine like terms: -7.111111111 + 7.111111111 = 0.000000000
0.000000000 + 2.666666667x + x2 = 0 + 7.111111111
2.666666667x + x2 = 0 + 7.111111111

Combine like terms: 0 + 7.111111111 = 7.111111111
2.666666667x + x2 = 7.111111111

The x term is 2.666666667x.  Take half its coefficient (1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
2.666666667x + 1.777777780 + x2 = 7.111111111 + 1.777777780

Reorder the terms:
1.777777780 + 2.666666667x + x2 = 7.111111111 + 1.777777780

Combine like terms: 7.111111111 + 1.777777780 = 8.888888891
1.777777780 + 2.666666667x + x2 = 8.888888891

Factor a perfect square on the left side:
(x + 1.333333334)(x + 1.333333334) = 8.888888891

Calculate the square root of the right side: 2.98142397

Break this problem into two subproblems by setting 
(x + 1.333333334) equal to 2.98142397 and -2.98142397.

Subproblem 1

x + 1.333333334 = 2.98142397 Simplifying x + 1.333333334 = 2.98142397 Reorder the terms: 1.333333334 + x = 2.98142397 Solving 1.333333334 + x = 2.98142397 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = 2.98142397 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = 2.98142397 + -1.333333334 x = 2.98142397 + -1.333333334 Combine like terms: 2.98142397 + -1.333333334 = 1.648090636 x = 1.648090636 Simplifying x = 1.648090636

Subproblem 2

x + 1.333333334 = -2.98142397 Simplifying x + 1.333333334 = -2.98142397 Reorder the terms: 1.333333334 + x = -2.98142397 Solving 1.333333334 + x = -2.98142397 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = -2.98142397 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = -2.98142397 + -1.333333334 x = -2.98142397 + -1.333333334 Combine like terms: -2.98142397 + -1.333333334 = -4.314757304 x = -4.314757304 Simplifying x = -4.314757304

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.648090636, -4.314757304}

See similar equations:

| y=45-5x | | 6x^2+28x+30=0 | | y=45-x | | 2y(9x^2+12)=0 | | -8-x=42 | | 6y-(3y+4)=5 | | -5x-4=-4-2x | | 5(x+1)-2=12 | | 6p+-18p= | | 12+20k-4=18k-4 | | 2y-2=8-3y | | 4(x-1)-x=3+2(x-3) | | 2.5b-1=6.5 | | 100+(2x-9)(2x+11)=0 | | 56-x=21 | | x-5=2x-25 | | m+7-2=5+m | | 7x+6=-3x+16 | | 7x=14-7x | | -6u+7=-36 | | lx-4l=9 | | 3+5(m-2)=4(14-m) | | 4.0.3x=19 | | 7x^2+12x-14=18-8x | | 10x=16+2x | | 16x+6=14x-4+4x+8 | | 6(w-4)+8=30 | | 4a+12=2a-24+49-28 | | 8x^2-8x+11=0 | | 5(w+3)+3(w+1)= | | R=S-rR | | 8x-3x+30=50 |

Equations solver categories