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

x = -2.72, -0.28

i used quadratic formula

Answer 2

x = [-12+-sqrt (12^2 - 4*4*3) ]/ 2