(3x-4)(3x+4)=64

Simple and best practice solution for (3x-4)(3x+4)=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 (3x-4)(3x+4)=64 equation:


Simplifying
(3x + -4)(3x + 4) = 64

Reorder the terms:
(-4 + 3x)(3x + 4) = 64

Reorder the terms:
(-4 + 3x)(4 + 3x) = 64

Multiply (-4 + 3x) * (4 + 3x)
(-4(4 + 3x) + 3x * (4 + 3x)) = 64
((4 * -4 + 3x * -4) + 3x * (4 + 3x)) = 64
((-16 + -12x) + 3x * (4 + 3x)) = 64
(-16 + -12x + (4 * 3x + 3x * 3x)) = 64
(-16 + -12x + (12x + 9x2)) = 64

Combine like terms: -12x + 12x = 0
(-16 + 0 + 9x2) = 64
(-16 + 9x2) = 64

Solving
-16 + 9x2 = 64

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '16' to each side of the equation.
-16 + 16 + 9x2 = 64 + 16

Combine like terms: -16 + 16 = 0
0 + 9x2 = 64 + 16
9x2 = 64 + 16

Combine like terms: 64 + 16 = 80
9x2 = 80

Divide each side by '9'.
x2 = 8.888888889

Simplifying
x2 = 8.888888889

Take the square root of each side:
x = {-2.98142397, 2.98142397}

See similar equations:

| 6+4x=3x+16 | | 10-3x=2x+15 | | 40-20x/5 | | 48-24x/2 | | y(x^4+8)+4(x^4+8)= | | x/9=-4/9 | | 3x^2-11.2x+2.7=0 | | X+5=(2x+5)(2x+5) | | 4x+4y+4z=560 | | 7y+(-4x)-9x+1-5y+9= | | 5=6.2/k | | 0=8y/7y-6 | | g-7.6=3.25 | | B=2a-4 | | 2P=5+2 | | 8/6-1/8 | | 6/12-3/10 | | sqrt(x+5)-2x=5 | | 8/2-7/12 | | 8/2-7/10 | | -8-8m-m=2m-8 | | 10x+3=12x-9 | | (3x+2)(x+1)=2x(5x-4) | | 90/9 | | 2p=5(6p+7) | | 2+7*8-(3*4+2+3)= | | log(y)=1.5x+11.8 | | 4n^5+5-(3n^5+3)= | | logy=1.5x+11.8 | | 160=11z+17 | | 5y+(2y-7)-12=63 | | X=0.5y+1.7 |

Equations solver categories