SOLUTION: I seem to be stuck with this problem: 2x(squared)-18=0 (I Can't put the squared signed next to the 2x) I am not sure on how to factor this: I tried x(2x-18)=0 Is that corr

Algebra.Com
Question 63297: I seem to be stuck with this problem:
2x(squared)-18=0 (I Can't put the squared signed next to the 2x)
I am not sure on how to factor this:
I tried x(2x-18)=0 Is that correct?

Found 2 solutions by jai_kos, funmath:
Answer by jai_kos(139)   (Show Source): You can put this solution on YOUR website!
Given 2x^2 - 18 = 0
Add 18 on both sides, we get
2x^2 -18 +18 = 0 +18
2x^2 = 18
Divide by 2, we get
2x^2 / 2 = 18 /2
x^2 = 9
Take the square root,
we get sqrt(x^2) = sqrt(9)
x = + 3 or -3
Whenever we take the square root, we get two values one with positive sign and one with negative sign.

Answer by funmath(2933)   (Show Source): You can put this solution on YOUR website!





x+3=0 and x-3=0
x+3-3=0-3 and x-3+3=0+3
x=-3 and x=3
Happy Calculating!!!!

RELATED QUESTIONS

I am not sure if this is a quadratic actually, but I wasn't sure what selection in the... (answered by RAY100,drj,Theo)
I am stuck on a quadratic graph question. y = (x-2)squared, sorry i can`t do a... (answered by Pieter)
Hello, Can someone help me with this problem. I cant seem to get it. 2x + 6... (answered by checkley71,stanbon,bucky)
Can you please help me with this problem. I am not sure how to complete it. Thank you in... (answered by stanbon)
I am working on the midsegments of trapezoids. I have trapezoid FGHI, the midpoints, JK. (answered by venugopalramana)
I am stuck on how to solve this equation (2x sqrt2x)(3 sqrt5x) Is it 6x^2 sqrt 10x? (answered by Nate)
This is the problem that I have trouble solving. I have an idea of how to solve it but I... (answered by stanbon)
i am trying to solve a problem with the format ax squared + bx + c and im not quit sure... (answered by stanbon)
I'm using a book called No-Nonsense Algebra by Richard Fisher. I've run into a problem... (answered by MathLover1,math_helper)