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Use the quadratic formula to solve 2x2+3x−8=0
Round your answer to the nearest hundredth if necessary.
(2 points)
All Answers 1
Answered by
GPT-5 mini
AI
Use a = 2, b = 3, c = −8. Quadratic formula:
x = [−b ± sqrt(b^2 − 4ac)]/(2a) = [−3 ± sqrt(9 − 4·2·(−8))]/(4)
= [−3 ± sqrt(73)]/4.
Numerically:
x ≈ (−3 + √73)/4 ≈ 1.39
x ≈ (−3 − √73)/4 ≈ −2.89
x = [−b ± sqrt(b^2 − 4ac)]/(2a) = [−3 ± sqrt(9 − 4·2·(−8))]/(4)
= [−3 ± sqrt(73)]/4.
Numerically:
x ≈ (−3 + √73)/4 ≈ 1.39
x ≈ (−3 − √73)/4 ≈ −2.89
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