Answer:
C. -3-√33/2
A. x = -3+√33/2
Step-by-step explanation:
= use quadratic formula a = 1, b = 3, c = -6
= x = - b ±√b^2-4ac/2a
= x = -3±√3^2-4×1×(-6)/2×1
= x = -3 ± √3^2-4×(-6)/2×1
(evaluate the power)
= x = -3±√9-4×(-6)/2
= x = -3±√9+24/2
= x = -3±√33/2
(write the solutions, 1 with a + and 1 with -)
a) x = -3 + √33/2
b) x = -3 - √33/2
answer:
x1 = x = -3 - √33/2
x2 = x = -3 +√33/2
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Answers & Comments
Answer:
C. -3-√33/2
A. x = -3+√33/2
Step-by-step explanation:
= use quadratic formula a = 1, b = 3, c = -6
= x = - b ±√b^2-4ac/2a
= x = -3±√3^2-4×1×(-6)/2×1
= x = -3 ± √3^2-4×(-6)/2×1
(evaluate the power)
= x = -3±√9-4×(-6)/2
= x = -3±√9+24/2
= x = -3±√33/2
(write the solutions, 1 with a + and 1 with -)
a) x = -3 + √33/2
b) x = -3 - √33/2
answer:
x1 = x = -3 - √33/2
x2 = x = -3 +√33/2