I need to factor this completely: but the answer in the packet says: My answer differs from the one in the packet at the last step. Is it because I cannot turn 16x into 4x?
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Originally Posted by lax600 I need to factor this completely: but the answer in the packet says: My answer differs from the one in the packet at the last step. Is it because I cannot turn 16x into 4x? You're just not correctly converting the difference of squares. We have: Hence, and . So, using the formula we have: .
Oh! Alright thanks ^^
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