Question

SIMPLIFY THE FOLLOWING USING IDENTITIES​

Answer 1

28 = 30 - 2

32 = 30 + 2

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

a = 30, b = 2

$(30 + 2)(30 - 2) = {30}^{2} - {2}^{2}$

$900 - 4$

$= 896$

Therefore,

28 × 32 = 896