Question

Q7.a) Use the identity (x+a)(x+b)=x2+(a+b)x+ab to find the product of 302X305.​

Answer 1

Answer:

302 × 305

(x + a)(x + b) = x² + (a + b)x + ab

(300 + 2)(300 + 5) = (300)² + (2 + 5)(300) + (2 × 5)

= 90000 + 2100 + 10

= 92110