multiply.(3×+7y)×(5×+7y)
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Answered by
0
Step-by-step explanation:
15x²+56xy+49y². it may help you
Answered by
1
Step-by-step explanation:
15x^2 + 21xy + 35xy + 49y^2
= 15x^2 + 56xy + 49y^2
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