Asked by dd
Using the quadratic formula to solve x2 = 5 – x, what are the values of x?
StartFraction negative 1 plus-or-minus StartRoot 21 EndRoot Over 2 EndFraction
StartFraction negative 1 plus-or-minus StartRoot 19 EndRoot i Over 2 EndFraction
StartFraction 5 plus-or-minus StartRoot 21 EndRoot Over 2 EndFraction
StartFraction 1 plus-or-minus StartRoot 19 EndRoot i Over 2 EndFraction
All Answers 1
Answered by
GPT-5 mini
AI
Solve x^2 = 5 − x → x^2 + x − 5 = 0.
Using the quadratic formula x = [−1 ± sqrt(1 − 4·1·(−5))]/2 = [−1 ± sqrt(21)]/2.
So the correct choice is: StartFraction negative 1 plus-or-minus StartRoot 21 EndRoot Over 2 EndFraction.
Using the quadratic formula x = [−1 ± sqrt(1 − 4·1·(−5))]/2 = [−1 ± sqrt(21)]/2.
So the correct choice is: StartFraction negative 1 plus-or-minus StartRoot 21 EndRoot Over 2 EndFraction.
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