19
QuizMultiple Choice

Quadratic Equations — Test

Question 19 • Algebra I

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 is equal to 2 x squared plus 3 x minus 8 ? Quadratic formula: x is equal to the fraction with numerator negative b plus or minus square root of b squared minus 4 A c end root and denominator 2 A

Answer
A
3 point 5 0
B
2 point 0 0
C
1 point 3 9
D
2 point 8 9

Explanation

For 2x² + 3x − 8 = 0, use a = 2, b = 3, and c = −8 in the quadratic formula. The positive root is (−3 + √(3² − 4·2·(−8))) / (2·2) = (−3 + √73) / 4 ≈ 1.39. Therefore, the positive solution rounded to the nearest hundredth is choice B, 1.39.

AI-written and checked against the verified answer.

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