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Which value is needed to create a perfect square trinomial from the expression x2 + 8x + _____?
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Which value is needed to create a perfect square trinomial from the expression x2 + 8x + _____?

User Emyr
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1 Answer

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16 is the number needed to complete the square.
The remaining number is found by taking
(b)/(2)²
B in this case is 8
4² is 16
User Richardd
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