Question

Solve 2x^2=14, I got sqrt(7), -sqrt(7). Now it says, (and the part I don't get is "Find the x-intercepts of f(x)2x^2-14"

Answer 1

This question has 2 parts.

Answer 2

its the same thing

Answer 3

yep, it's the same.

Answer 4

its just 2x^2-14=0

Answer 5

since the first step in finding of the roots takes you to:
2x^2=14

Answer 6

I'm using mathlab, so do I just type in the same thing?

Answer 7

For the x-intercepts...

Answer 8

yes i think so

Answer 9

x intercepts are:
\[\pm \sqrt 7\]

enter that however you need to :D

Answer 10

Ah! :o
What does the first symbol mean? Two of sqrt(7)? I hope this works.

Answer 11

it mean plus or minus