Question

What are the approximate solutions of 2x2 + 9x = 8 to the nearest hundredth?

x ≈ 1.22 and x ≈ 3.28

x ≈ −0.76 and x ≈ 5.26

x ≈ −1.22 and x ≈ −3.28

x ≈ −5.26 and x ≈ 0.76

Answer 1

2x^2 +9x -8=0

Use the quadratic formula to find the roots
a=2
b=9
c=-8

\[(-b \pm \sqrt{b ^{2}-4ac})/2a\]