(x-7)(2x+1)=0

Simple and best practice solution for (x-7)(2x+1)=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 (x-7)(2x+1)=0 equation:


Simplifying
(x + -7)(2x + 1) = 0

Reorder the terms:
(-7 + x)(2x + 1) = 0

Reorder the terms:
(-7 + x)(1 + 2x) = 0

Multiply (-7 + x) * (1 + 2x)
(-7(1 + 2x) + x(1 + 2x)) = 0
((1 * -7 + 2x * -7) + x(1 + 2x)) = 0
((-7 + -14x) + x(1 + 2x)) = 0
(-7 + -14x + (1 * x + 2x * x)) = 0
(-7 + -14x + (1x + 2x2)) = 0

Combine like terms: -14x + 1x = -13x
(-7 + -13x + 2x2) = 0

Solving
-7 + -13x + 2x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -2x)(7 + -1x) = 0

Subproblem 1

Set the factor '(-1 + -2x)' equal to zero and attempt to solve: Simplifying -1 + -2x = 0 Solving -1 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2x = 0 + 1 -2x = 0 + 1 Combine like terms: 0 + 1 = 1 -2x = 1 Divide each side by '-2'. x = -0.5 Simplifying x = -0.5

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {-0.5, 7}

See similar equations:

| 7x-3= | | 41.096=4.67x | | 13=3+5a | | 29.406=7.54y | | 6y-8=28 | | 2.91p=-24.444 | | 9+14=8(q+7) | | -3(x+1)-x+3=0 | | 4(x-6)=-12 | | 6.45j=36.765 | | x^2+9x=9 | | r+2.14=27.84 | | 2(-3x+5)=-3(-4x-8) | | k+89.72=-47.62 | | 2x-11+3(x+2)=0 | | .7-6u=5u+29 | | 7-5=-4 | | h+26.99=11.74 | | 5x+4y=22 | | -3x-5(2x+3)=3(x+1) | | x*7-5=-4 | | 2x+5a=7c | | 9x-1= | | 67.75-a=34.81 | | x^2+49= | | x-18=-35 | | x^2-21=4x | | 9x+72=180 | | .38x-.33x+6=.17x | | 34.932=4.92g | | 9x-72=180 | | -x+2y=4 |

Equations solver categories