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3 years ago

10

Solve x2 - 49 = 0 A) ±49 B) ±12 C) ±7 D) ±6

2 answers:

Stells [14]3 years ago

8 0

X2 - 49 = 0 factor this:0
(x + 7)(x - 7) = 0

x = +/- 7

Alex Ar [27]3 years ago

5 0

C, x = +-7. Difference of squares

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