Question

2. Using identity (x + a) (x + b) = x2+(a + b)x + ab, find the value of the following:
(a) 56 ×48
ino.​

Answer 1

Step-by-step explanation:

(50+6) (50-2)

(50)²+{6+(-2)}50 +(6)(-2)

(50)²+{6-2)50 +(6)(-2)

2500 +(4)50 +(-12)

2500 +200 -12

2700 -12

2688