Question

evaluate the following using the identity (x + a)(x + b) = x2 + (a + b)x + ab
find 62*63​

Answer 1

Answer:

(60+2)*(60+3)

2(x) +(2+3)x+(2)(3)

2x +5x +6

7x + 6

here x is 60

so put x is equal to 60

we get

7(60)+6

420+6

426