(x-3)(x-7)=0

Simple and best practice solution for (x-3)(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 (x-3)(x-7)=0 equation:


Simplifying
(x + -3)(x + -7) = 0

Reorder the terms:
(-3 + x)(x + -7) = 0

Reorder the terms:
(-3 + x)(-7 + x) = 0

Multiply (-3 + x) * (-7 + x)
(-3(-7 + x) + x(-7 + x)) = 0
((-7 * -3 + x * -3) + x(-7 + x)) = 0
((21 + -3x) + x(-7 + x)) = 0
(21 + -3x + (-7 * x + x * x)) = 0
(21 + -3x + (-7x + x2)) = 0

Combine like terms: -3x + -7x = -10x
(21 + -10x + x2) = 0

Solving
21 + -10x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(3 + -1x)(7 + -1x) = 0

Subproblem 1

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

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 = {3, 7}

See similar equations:

| 2f+6-2=8+2f | | 2x-12+4=4x+8-6 | | 3x+4x=6x+6 | | 6a^2=25a-14 | | -9(r+3)-9r=-3r-(3r)+8 | | 7y-1=2y+6-2 | | 81r^2-90r+25=0 | | 6x-8x=9+4x | | x-10(-8)=85 | | 8-10(-8)=85 | | 9-3(1-q)=7-4(2-q) | | 7=56n | | 9y-10(85+10y)=-122 | | 7.8-n=0.2 | | x-10y=85 | | x^4-5x^2+4=0 | | 6b+8=2b-8 | | n+25=18 | | 4x^5=24x^3 | | 9(2x+5)+3=26 | | 11x+5=-15+6x | | 18=x-7x | | 11x+5=-156x | | 36w^2+60w+25=0 | | t+17-2t=-3(t-1)-3 | | p^2-36=0 | | 2x^2+1=51 | | -2x+1=6x+9 | | x=-5y-5 | | 4x-3=-17 | | 4K(2K-7)= | | q=2n+2w |

Equations solver categories