I had this problem on a quiz. I already took the quiz and got a B+. I couldn't figure out how to do this problem. Can someone help me out just incase it comes up on the test I will know how to do it. Actually you do not have to tell me the answer. I just need to know how to set it up and I can get the answer.
Thanks
x^3=16x ---------> Would it be consider Difference of Cube?
2006-08-23 16:21:18 · 6 answers · asked by Miss. Tee98 4 in Education & Reference ➔ Homework Help
x^3 - 16x = 0
x(x^2 - 16) = 0
x(x+4)(x-4) = 0
x = 0, -4, or 4
Not a diff. of cubes. Take out the common factor x, then you get a diff. of 2 squares.
2006-08-23 16:28:09 · answer #1 · answered by jenh42002 7 · 2⤊ 0⤋
x^3=4^2x
divide both side by x
square root both sides
x=4
2006-08-23 23:29:23 · answer #2 · answered by DainBramaged 3 · 1⤊ 1⤋
14!
2006-08-23 23:26:25 · answer #3 · answered by rocksinger4ever 4 · 0⤊ 2⤋
x.x.x=16x then x.x.x divided x is =16
xto square=16
x=root of16 and then
x=4 or -4
2006-08-23 23:34:01 · answer #4 · answered by MARTA SUSANA L 3 · 1⤊ 1⤋
i hate math
2006-08-23 23:27:47 · answer #5 · answered by luckduck_luckyducky 1 · 0⤊ 1⤋
easy algebra
2006-08-23 23:29:53 · answer #6 · answered by PlayTOE- 3 · 0⤊ 3⤋