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OpenStudy (ethan01):
Factor k2 - 81. A.(k + 9)(k + 9) B.(k - 9)(k - 9) C.(k - 9)(k + 9)
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OpenStudy (oswaldmurphy):
Is that k^2? or 2k?
OpenStudy (ethan01):
k^2
OpenStudy (p0sitr0n):
(k-9)(k+9)
OpenStudy (ethan01):
can you do this one too Factor 64a 2 - 48a + 9. A.(8a + 9)(8a - 1) B.(8a - 3)2 C.(4a + 3)(16a - 3)
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