9+7 9-7 simplyfy full solution
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Answered by
1
Step-by-step explanation:
= 9+7 * 9-7
= 16 * 2
= 32
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Answered by
0
Step-by-step explanation:
(9+7) (9-7). = ( a+b) ( a-b) = a^2-b^2
9^2 - 7^2
= 81 - 49
= 32
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