SOLUTION: How do I solve this problem by factoring. 6x^2 + 42x=0

Question 156978: How do I solve this problem by factoring. 6x^2 + 42x=0
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
6x^2 + 42x=0
-------
Divide by 6
x^2 + 7 = 0
x^2 = -7
x = +i*sqrt(7)
x = -i*sqrt(7)
i = sqrt(-1)

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given equation

Factor out the GCF

Now set each factor equal to zero:

or

or Now solve for x in each case

So the answers are

or
RELATED QUESTIONS
how do I solve this quadratic equation by factoring? {{{ 2x^2 - 6x = 0... (answered by stanbon)
How do I solve the following by factoring?: 3x^2 - 6x =... (answered by orca)
I have to solve this equation by factoring. 3x^2-6x=24 could you show me how to do this (answered by waynest)
I need help with this problem: Solve by factoring... (answered by rfer)
How do you solve a quadratic equation by factoring when it isn't equal to 0? Problem... (answered by Earlsdon)
how do you solve -3x^4+6x^3+105x^2=0 by factoring? (answered by josgarithmetic,MathTherapy)
How do I solve this problem?... (answered by sarah_adam)
solve by factoring check each answer 2x^2+3x=2 2x^2+3x-2=0 (2x-1)(x+2)=0 x=1/2... (answered by ankor@dixie-net.com)
5.3.1.2. How do I solve this (below) using factoring? x^2 + 6x - 27 = 0 I... (answered by nabla,Edwin McCravy)