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OpenStudy (anonymous):
Check all polynomials that are perfect square trinomials: 49x2 − 8x + 16 4a2 − 20a + 25 25b2 − 5b + 10 16x2 − 8x + 1
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OpenStudy (anonymous):
I'm not seeing any of these as perfect squares.
OpenStudy (anonymous):
b and d
OpenStudy (anonymous):
I got it now. I was forgetting to multiply the multiplied bases by 2.
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