(5x-1)(x+7)=0

Simple and best practice solution for (5x-1)(x+7)=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 (5x-1)(x+7)=0 equation:


Simplifying
(5x + -1)(x + 7) = 0

Reorder the terms:
(-1 + 5x)(x + 7) = 0

Reorder the terms:
(-1 + 5x)(7 + x) = 0

Multiply (-1 + 5x) * (7 + x)
(-1(7 + x) + 5x * (7 + x)) = 0
((7 * -1 + x * -1) + 5x * (7 + x)) = 0
((-7 + -1x) + 5x * (7 + x)) = 0
(-7 + -1x + (7 * 5x + x * 5x)) = 0
(-7 + -1x + (35x + 5x2)) = 0

Combine like terms: -1x + 35x = 34x
(-7 + 34x + 5x2) = 0

Solving
-7 + 34x + 5x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -1x)(1 + -5x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -5x)' equal to zero and attempt to solve: Simplifying 1 + -5x = 0 Solving 1 + -5x = 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 + -5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -5x = 0 + -1 -5x = 0 + -1 Combine like terms: 0 + -1 = -1 -5x = -1 Divide each side by '-5'. x = 0.2 Simplifying x = 0.2

Solution

x = {-7, 0.2}

See similar equations:

| 11x+6+x=90 | | 5k-(4+k)=-(6k+4) | | 2x+.25y=20 | | gx-14=70 | | =5+x-13 | | 7.5b=75 | | 2x+2+3x=-28 | | 3x+34=5x+8 | | 8.5y=85 | | -8+4x+x=17 | | 35=V+(40)(6) | | -3x-84=-14x-12+3x | | 4x+25=-x | | 104y=-5 | | 35=Vi+(40)(6) | | 8x-86=3x+9 | | 7-x-6x=-42 | | 41=3n-1 | | 7n+6=41 | | 10+2n=18 | | 32+3n=35 | | 45=7n-4 | | -7x-6+2x=-46 | | x-67=-14x-10+12x | | -9x-12=-6x | | -2x-69=-7x-9 | | -4x-11=-11x+7+10x | | -8x-7=-7x | | 3+5x+6x=-41 | | 9-6x+3x=15 | | 4t-2=144 | | 2x-8+6x=80 |

Equations solver categories