Question

B. Give reasons.
1. 81 = 9 or -9​

Answer 1

Answer:

81=9 or-9

Step-by-step explanation:

because 81=9×9

           or 81= -9×-9

the answer will be same in both the case

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Answer 2

Answer:-

(81) = (9)^2 or (-9)^2

It is Because when we use Positive 9(+9)

Than,

9 x 9 = 81

And

When we use Negative 9 (-9)

Than,

(-9) x (-9) = 81

⏫I hope iT help you ⏫

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