Question

evaluate 93×107 using suitable identity ​

Answer 1

Identity used is :—

(A+B)(A-B)⟹[A²-B²]

93×107

(100-7)(100+7)

(100)²-(7²)

10000-49

⟹9951

Answer 2

$(100 + 7)(100 - 7)$

$(100) ^{2} - (7)^{2}$

$10000 - 49$

$9951$

solve.......---------