Question

Find the value of 89 x 111 using algebraic identities

Answer 1

Answer:

89=100-11

111=100+11

(a+b)*(a-b)

= a²-b²

100²-11²

10000-121

=9879

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Answer 2

Answer:

9879

Step-by-step explanation:

this question is based on

(a+b)(a-b)= a²-b²

here 89=100-11

111=100+11

so a=100,b=11