Math, asked by Saara777, 9 months ago

solve using standard formula
a) 1.81 x 1.81 -1.81 x 2.19 +2.19 x 2.19
b) 7.16×7.16+2.16×7.16+2.16×2.16

Answers

Answered by yashmitha1234

2

Step-by-step explanation:

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