Question

solve: 3x^2-16x-7=5

Answer 1

use the quadratic eq

Answer 2

ok. do I need to make it eqaul 0

Answer 3

yes, move the 5 to the left side of the eq and then use the quad eq

Answer 4

ok thanks

Answer 5

what I mean is subtract 5 from both sides and then use the quad eq

Answer 6

I got you

Answer 7

let me know what you get, ok?

Answer 8

3x^2-16x-7=5
-5 -5
3x^2-16x-12=0
(x-6)(3x+2)=0
x= 6, -2/3

Answer 9

real good!

Answer 10

the onlyy problem that I have is when I substitute the answer's I only get the correct one with the first solution for x and when I try to do it with the fraction i get confused. do I need to make it a decimal or what?

Answer 11

hand on a second

Answer 12

ok

Answer 13

they both work. you are probably using a negative when you should be using a positive for -2/3^2

Answer 14

ok. I used a positive but I may have did it wrong but I did get the answer right.Thanks a lot!!!

Answer 15

happy to help