Question

. 11. Using suitable identities
(iv) 87² – 13²​

Answer 1

Answer:

MARK MY ANSWER AS BRAINIEST

Step-by-step explanation:

87² – 13²

=7569-169

=7400

Answer 2

Answer:

7400

Step-by-step explanation:

The identity we will be using is:

$=a^{2} - b^{2} = (a+b) (a-b)\\87^{2}- 13^{2} \\ = (87 + 13)(87 - 13)\\ =(100) (74)\\ =7400$