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

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


Simplifying
(4u + 9)(4 + -1u) = 0

Reorder the terms:
(9 + 4u)(4 + -1u) = 0

Multiply (9 + 4u) * (4 + -1u)
(9(4 + -1u) + 4u * (4 + -1u)) = 0
((4 * 9 + -1u * 9) + 4u * (4 + -1u)) = 0
((36 + -9u) + 4u * (4 + -1u)) = 0
(36 + -9u + (4 * 4u + -1u * 4u)) = 0
(36 + -9u + (16u + -4u2)) = 0

Combine like terms: -9u + 16u = 7u
(36 + 7u + -4u2) = 0

Solving
36 + 7u + -4u2 = 0

Solving for variable 'u'.

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

Subproblem 1

Set the factor '(4 + -1u)' equal to zero and attempt to solve: Simplifying 4 + -1u = 0 Solving 4 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1u = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1u = 0 + -4 -1u = 0 + -4 Combine like terms: 0 + -4 = -4 -1u = -4 Divide each side by '-1'. u = 4 Simplifying u = 4

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 = {4, -2.25}

See similar equations:

| 12v^8y^2x^7= | | 7x^6-14x^4=0 | | 50x^2-40x=0 | | 2-10x+3x^2=y | | t^2+4tf-21f^2=0 | | 8a^2+4a=0 | | 0=-10x^2+50 | | 25x^2+81x+64=x | | 3x=1594 | | 8+4(z-2)=-3z+2 | | -0.8x=-2 | | 36x-9=14x+10 | | 6r-26=-36+4r | | 6x^2=-10-1 | | 2*ln(7x)=4 | | y-6-y-6=16 | | y-6+y-6=16 | | 10x+2-5x=-73x-4 | | x(0.7)+x=102 | | c^2+36=0 | | 7x-9=10x-18 | | 9a^2+30a+25= | | 3.7=0.21w | | 54=-9u | | 12a=156 | | 6n=-72 | | 6n=172 | | (x+2)(x+5)-40=0 | | -12r=12 | | 4x^2-70x+6=0 | | 3x^2+8=38 | | 20u^3+65u^2-60u= |

Equations solver categories