Question

Evaluate the following product without directly multiplying the given number: 86×82​

Answer 1

(90 + 14) (90 + 6)

by using identity

(x + a) (x + b) = x² + (a+b)*x + ab

So,

x = 90 , a = 14 , b = 6

= (90)² + (14 + 6)*90 + (14*6)

= 8100 + 20*90 + 84

= 8100 + 1800 + 84

= 9984

Answer 2

Answer:

Plz like and as Brainless

Step-by-step explanation:

86 x 82

(80+6) (80+2)

Now, by using identity

(x + a) (x + b) = x² + (a+b)*x + ab

So,

x = 80 , a = 6 , b = 2