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Lubov Fominskaja [6]
3 years ago
9

Solve for x. x2 − 16 = 9 A) x = 3 or −3 B) x = 4 or −4 C) x = 5 or −5 D) x = 6 or −6

Mathematics
1 answer:
Margaret [11]3 years ago
6 0

Answer:

C

Step-by-step explanation:

x^2 - 16 = 9

x^2 -16 +16 = 9+16

x^2 = 25

√x^2 = √25

x = 5

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