Question

What are the approximate solutions of 4x2 + 3 = −12x to the nearest hundredth?

x ≈ −3.23 and x ≈ 0.23

x ≈ −2.72 and x ≈ −0.28

x ≈ 0.28 and x ≈ 2.72

x ≈ −0.23 and x ≈ 3.23

Answer 1

Do you have a graphing calculator?

Answer 2

If not, you can use wolfram alpha to get the following roots (see attached)

Link: http://www.wolframalpha.com/input/?i=4x^2+%2B+3+%2B+12x

Answer 3

OK< thx. :)

Answer 4

P.S. I finally got the answer, thx!! :D

Answer 5

yw