(7+u)(4u-9)=0

Simple and best practice solution for (7+u)(4u-9)=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 (7+u)(4u-9)=0 equation:


Simplifying
(7 + u)(4u + -9) = 0

Reorder the terms:
(7 + u)(-9 + 4u) = 0

Multiply (7 + u) * (-9 + 4u)
(7(-9 + 4u) + u(-9 + 4u)) = 0
((-9 * 7 + 4u * 7) + u(-9 + 4u)) = 0
((-63 + 28u) + u(-9 + 4u)) = 0
(-63 + 28u + (-9 * u + 4u * u)) = 0
(-63 + 28u + (-9u + 4u2)) = 0

Combine like terms: 28u + -9u = 19u
(-63 + 19u + 4u2) = 0

Solving
-63 + 19u + 4u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(-7 + -1u)(9 + -4u) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -4u)' equal to zero and attempt to solve: Simplifying 9 + -4u = 0 Solving 9 + -4u = 0 Move all terms containing u to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4u = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4u = 0 + -9 -4u = 0 + -9 Combine like terms: 0 + -9 = -9 -4u = -9 Divide each side by '-4'. u = 2.25 Simplifying u = 2.25

Solution

u = {-7, 2.25}

See similar equations:

| 2x+1/5=7/3 | | 5(x+9)=45 | | 3x^2+12x-24=0 | | =4x^2-13x+3 | | x^2+22x+85=0 | | 6z+35= | | x^2+22x-36=0 | | 1=105tx-209452 | | x^2+107x=0 | | 4(x-1)=9x-8-5x | | -8n+18+9n=58 | | -3(k-9)-(-5k+4)=-7 | | 3x^2+5x-24=0 | | 17=5x-9 | | 6k^2-47k-8=0 | | (8r+5)(3r-9)=0 | | 3x+23y=-2 | | 2(x+10)=30 | | 16+5x=0 | | 3m-4=10 | | 5(6z-1)-4(z+1)=24(z+1) | | -.5x-20=50 | | n+27-3n=21 | | x+2x+3x=280 | | -6y=9 | | 2(3x-4)+10=5(x-4) | | x^2-20x+32=0 | | -17x+19y=5 | | 3r^2-52r+140=0 | | x^2-6x=247 | | 7b^2= | | 7b(7b)= |

Equations solver categories