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Solve x2 - 49 = 0 A) ±49 B) ±12 C) ±7 D) ±6
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Solve x2 - 49 = 0 A) ±49 B) ±12 C) ±7 D) ±6
asked
Oct 19, 2018
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Solve
x2 - 49 = 0
A) ±49
B) ±12
C) ±7
D) ±6
Mathematics
high-school
Ashkan Rahmani
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Ashkan Rahmani
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C, x = +-7. Difference of squares
Sum NL
answered
Oct 21, 2018
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Sum NL
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x2 - 49 = 0 factor this:0
(x + 7)(x - 7) = 0
x = +/- 7
Rhynden
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Oct 26, 2018
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Rhynden
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