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OpenStudy (anonymous):
Factor completely: 16x2 − 81
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OpenStudy (anonymous):
ANSWERS:
OpenStudy (anonymous):
16x^2 - 81 = 0 (4x + 9)(4x – 9) = 0 So here you look for the solutions. 4x + 9 = 0 and 4x – 9 = 0 x = 9/4 and -9/4
OpenStudy (anonymous):
In other words, the first option is the right answer.
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