14u^2+7u-105=0

Simple and best practice solution for 14u^2+7u-105=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 14u^2+7u-105=0 equation:


Simplifying
14u2 + 7u + -105 = 0

Reorder the terms:
-105 + 7u + 14u2 = 0

Solving
-105 + 7u + 14u2 = 0

Solving for variable 'u'.

Factor out the Greatest Common Factor (GCF), '7'.
7(-15 + u + 2u2) = 0

Factor a trinomial.
7((-3 + -1u)(5 + -2u)) = 0

Ignore the factor 7.

Subproblem 1

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

Subproblem 2

Set the factor '(5 + -2u)' equal to zero and attempt to solve: Simplifying 5 + -2u = 0 Solving 5 + -2u = 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 + -2u = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2u = 0 + -5 -2u = 0 + -5 Combine like terms: 0 + -5 = -5 -2u = -5 Divide each side by '-2'. u = 2.5 Simplifying u = 2.5

Solution

u = {-3, 2.5}

See similar equations:

| 7d+1=15 | | 0.4x+1.23=0.07x | | y+4(y-2)=9y-2(y-4) | | 3(x+6)=3x+14 | | 3(x+1)-5=6x-3(2+x) | | 2(t-7)-1=-5(6t-t) | | (R-6)-9= | | x^2+5xy-y^2+-15=0 | | 180+.25x=395 | | 3v^2-7v-6= | | 2x+5+3x+1=AB | | y+2.2=0.8(y+3) | | 6(3x-1)=6x+4 | | y+(y-1)=11 | | H-26=-24 | | 5h+6=2h+69 | | -21+56x^5=0 | | 8k-8=-10+k+6+6k | | 15n^2-8n-16=0 | | 4(p-2)-3(2p+9)=1.5(2p-13) | | 2(a-4)=13+2r | | 2(u-9)=6 | | -6(6x-8)+5x= | | -3x+1.33=1.66 | | 10x=425x+6460 | | -60(p)=p-40(.80) | | -5(4a+8)=-20-8a | | 15n^2-8-16=0 | | ax-b=dx+c | | -6(6x-8)+5xp= | | 36(28)x=6112 | | 3(a-17)+2(a+41)=a+5 |

Equations solver categories