Question

Evaluate using identity 104*95

Answer 1

Answer:

9880

Step-by-step explanation:

104 × 95 = ( 100 + 4 ) (100 - 5)

Using (x + a) (x + b) = x² + (a + b)x + ab, where x = 100, a = 4 and b = (-5)

            = 100² + (4 - 5)×100 + (4) × (-5)

            = 10000 -100 - 20

            = 9880

∴ 104 × 95 = 9880