Question

89×87 evaluate using identity​

Answer 1

Answer:

7743

Step-by-step explanation:

$89 \times 87$

$(100 - 11) \times (100 - 13)$

[using identity (x-a)(x-b)= x²-ax-bx+ab]

$= {100}^{2} - (11 \times 100) - (13 \times 100) + (11 \times 13)$

$= 10000 - 1100 - 1300 + 143$

= 7743

Hope It Helps

Answer 2

The answer is of the question (7743)