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What number must you add to complete the square x^2+8=-3? A. 16 B. 8 C. 4 D. 64
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4 votes
What number must you add to complete the square x^2+8=-3?

A. 16
B. 8
C. 4
D. 64

User Moudiz
by
4.7k points

1 Answer

2 votes


x^2 + 8x = -3


x^2 + 8x + (8/2)^2 = -3 + (8/2)^2


x^2 + 8x + 16 = -3 + 16

Answer: A 16


(x + 4)^2 = 13



User Rick Sarvas
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