Solve the quadratic equation below by completing the square
2 answers:
Answer:
n = -5/2 and n = 13/2
Step-by-step explanation:
4·n^2 - 16·n - 21 = 44
4·n^2 - 16·n = 65
n^2 - 4·n = 65/4
n^2 - 4·n + 4 = 65/4 + 4
(n - 2)^2 = 81/4
n - 2 = ± 9/2
n = 2 ± 4.5
n1 = -2.5 or n2 = 6.5
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