(5x+4)*(5x-4)=

Simple and best practice solution for (5x+4)*(5x-4)= 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 (5x+4)*(5x-4)= equation:


Simplifying
(5x + 4)(5x + -4) = 0

Reorder the terms:
(4 + 5x)(5x + -4) = 0

Reorder the terms:
(4 + 5x)(-4 + 5x) = 0

Multiply (4 + 5x) * (-4 + 5x)
(4(-4 + 5x) + 5x * (-4 + 5x)) = 0
((-4 * 4 + 5x * 4) + 5x * (-4 + 5x)) = 0
((-16 + 20x) + 5x * (-4 + 5x)) = 0
(-16 + 20x + (-4 * 5x + 5x * 5x)) = 0
(-16 + 20x + (-20x + 25x2)) = 0

Combine like terms: 20x + -20x = 0
(-16 + 0 + 25x2) = 0
(-16 + 25x2) = 0

Solving
-16 + 25x2 = 0

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 + 25x2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 25x2 = 0 + 16
25x2 = 0 + 16

Combine like terms: 0 + 16 = 16
25x2 = 16

Divide each side by '25'.
x2 = 0.64

Simplifying
x2 = 0.64

Take the square root of each side:
x = {-0.8, 0.8}

See similar equations:

| v/11=5 | | (1.03)^1/6 | | sqrt(2x)=sqrt(11-8x)-1 | | n-1.6/4=5.8 | | (x+50)(x+30)=2320 | | 9+5(8-6y)= | | 3*-12-20+6*-12-2=8*-12+2*-12 | | sqrt(4x+1)=1+sqrt(2x) | | 6n+8=2n+25 | | 3(9n+3n)+n= | | 5x+12+8x-5= | | 2x^2-7x=6x | | z^7-24z^5= | | 6m+20=9m-4 | | 16/6= | | abs(3y+5)=abs(3y+4) | | 6x-2=8+5 | | 7x-9=5x+6 | | 5(4x+2)=84 | | (3x-6)(4x-9)= | | 3(2x-1)=13 | | 3x^2+3x=82 | | 9n+1=3(2n+3) | | 3b=-3b-12 | | 4m+15=6m-3 | | 5r^2+70r+245= | | (0-2)/(4-0) | | 5x+4=3x+9 | | -[2k-11]=7 | | A-(3)=19 | | 2x-6xy=0 | | 5x+2=2x+13 |

Equations solver categories