(u+5)(u-7)=

Simple and best practice solution for (u+5)(u-7)= 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 (u+5)(u-7)= equation:


Simplifying
(u + 5)(u + -7) = 0

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

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

Multiply (5 + u) * (-7 + u)
(5(-7 + u) + u(-7 + u)) = 0
((-7 * 5 + u * 5) + u(-7 + u)) = 0
((-35 + 5u) + u(-7 + u)) = 0
(-35 + 5u + (-7 * u + u * u)) = 0
(-35 + 5u + (-7u + u2)) = 0

Combine like terms: 5u + -7u = -2u
(-35 + -2u + u2) = 0

Solving
-35 + -2u + u2 = 0

Solving for variable 'u'.

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

Subproblem 1

Set the factor '(-5 + -1u)' equal to zero and attempt to solve: Simplifying -5 + -1u = 0 Solving -5 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1u = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1u = 0 + 5 -1u = 0 + 5 Combine like terms: 0 + 5 = 5 -1u = 5 Divide each side by '-1'. u = -5 Simplifying u = -5

Subproblem 2

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

Solution

u = {-5, 7}

See similar equations:

| 2w^2(2w+13)=69 | | 4r-12=-14 | | 5+0.8=9 | | 6*1/6x= | | 5-2(sin(x))=9-6(sin(x)) | | 0.05x^2-0.1=0 | | 4r-12=15 | | 5+0.8a=14.6 | | W=3*2+4*6 | | 2w^2+21w+52=0 | | 2(x-5)+x=71 | | 11y-7z+8x+2y+9z-5x= | | 2(k-9)=-18 | | 2w^2+21w+52=69 | | 9y-8b=13.83 | | 26-2t=-12 | | 5+0.8=14.6 | | 4y-10x=-8 | | 0.0476x^2-0.1=0 | | 3x-4x+20=24 | | 8(5x-5)-4=2(6-8x) | | 6.99-0.55=11.95 | | -q=21 | | y=4x^2-13 | | 2x+10=x+26 | | 84h-65h-15h+4=56 | | 4(2x-7)=16 | | 27+4w=5w | | 67-x=76-2x | | 7n-6=-146 | | -88=2(g+42) | | 6x^19=0 |

Equations solver categories