(7x+5)(5x-4)=0

Simple and best practice solution for (7x+5)(5x-4)=0 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 (7x+5)(5x-4)=0 equation:


Simplifying
(7x + 5)(5x + -4) = 0

Reorder the terms:
(5 + 7x)(5x + -4) = 0

Reorder the terms:
(5 + 7x)(-4 + 5x) = 0

Multiply (5 + 7x) * (-4 + 5x)
(5(-4 + 5x) + 7x * (-4 + 5x)) = 0
((-4 * 5 + 5x * 5) + 7x * (-4 + 5x)) = 0
((-20 + 25x) + 7x * (-4 + 5x)) = 0
(-20 + 25x + (-4 * 7x + 5x * 7x)) = 0
(-20 + 25x + (-28x + 35x2)) = 0

Combine like terms: 25x + -28x = -3x
(-20 + -3x + 35x2) = 0

Solving
-20 + -3x + 35x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-5 + -7x)(4 + -5x) = 0

Subproblem 1

Set the factor '(-5 + -7x)' equal to zero and attempt to solve: Simplifying -5 + -7x = 0 Solving -5 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -7x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -7x = 0 + 5 -7x = 0 + 5 Combine like terms: 0 + 5 = 5 -7x = 5 Divide each side by '-7'. x = -0.7142857143 Simplifying x = -0.7142857143

Subproblem 2

Set the factor '(4 + -5x)' equal to zero and attempt to solve: Simplifying 4 + -5x = 0 Solving 4 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -5x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5x = 0 + -4 -5x = 0 + -4 Combine like terms: 0 + -4 = -4 -5x = -4 Divide each side by '-5'. x = 0.8 Simplifying x = 0.8

Solution

x = {-0.7142857143, 0.8}

See similar equations:

| 2a-3b=-3 | | 8/12-3/13 | | -5=q/18 | | -3a+b=-2 | | 4x-2(x-5)=-9+5x+13 | | (5n^(2n))^(1/n) | | 8r=3-16 | | -2z^2+162=0 | | sqrt-4=x | | 10x-6x+192=10x+84 | | -2z^2=-162 | | -4a+8b=32 | | 8x+7x-92=69-8x | | 3i(2i)=x | | 11y=(18/11) | | 2x+6=3x-56 | | m=64-48/8 | | m=64-48/6 | | L-10=19 | | f(x)=0.4x+60 | | x^2+9+2x=0 | | 349x=33649 | | 87x=33649 | | 91x=33649 | | (3p+8)+12=(8+12)+1 | | g-23=23 | | 93x=33649 | | 97x=33649 | | x^2+6x=2(3x+2) | | 4/5y-1=15 | | 6x+75=4x-300 | | 0.4x+8=0.5x |

Equations solver categories