Math, asked by umairsk99, 4 months ago

simplify :a2+10a+21 × a2-1
a2+6a-7 ×a+3

Answers

Answered by vishalhatti28

0

Step-by-step explanation:

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Answered by sayedzeenu

0

Answer:

64a-1

(+) a+3

________

65a+2

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.

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.

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