u*u+6u-7=0

Simple and best practice solution for u*u+6u-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 u*u+6u-7=0 equation:


Simplifying
u * u + 6u + -7 = 0

Multiply u * u
u2 + 6u + -7 = 0

Reorder the terms:
-7 + 6u + u2 = 0

Solving
-7 + 6u + u2 = 0

Solving for variable 'u'.

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

Solution

u = {-7, 1}

See similar equations:

| u*u+6u=7 | | u*u*u+6u=7 | | 180-x+5x=460-5x+5x | | 10x+5y+0.05z=100 | | -x^3+6*x^2=-13x+42 | | 8r^2+2=114 | | x=2-1+2(4)-3(5)+23-12-12+23(2) | | x=2-1+2(4)-3(5)+23-12-1/2 | | x=2-1+2(4)-3(5)+23-12-1/3 | | x=2-1+2(4)-3(5)+23-12-1 | | x=2+24+123-56+23 | | x^2(x+5)=144 | | 50x=30(x+2) | | 5ysquared+18y+7=0 | | 5y+18y+7=0 | | x+x+1=1.10 | | x=15+3*-4 | | 3(15+3y)+2y=1 | | 2+4-6*2+2*5+6=10 | | 1.0-3.7x=-4.2x+0.3 | | 3.57x+1.61=4.71 | | 4y-3=80 | | -7+10=-20 | | x^3+10x+k=0 | | -3(5-9)v=25+7v | | -g+7g=6 | | 1=7v+3(v+3) | | 3j^2-4j=-1 | | 3x-4=zx-10 | | 8(x+6)=335 | | 11-3x=19-2x | | 3x^2+x^3= |

Equations solver categories