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OpenStudy (ayanaortega):
can someone help me please What number should be added to the expression to change it into a perfect square trinomial? X^2+6x A. 3 B. 6 C. 9 D. 12
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OpenStudy (ayanaortega):
@HaileyD @Kathy26
OpenStudy (math&ing001):
x²+6x = x² + 2*3*x (a+b)² = a² + 2ab + b² So to complete the square we need to add 3².
OpenStudy (ayanaortega):
@flowey15
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