Question

find the product using suitable identity

i) (5a - 6b) (5a - 6b)
ii)(4p - 7q) (4p+7q )
​

Answer 1

Step-by-step explanation:

(5a-6b)(5a-6b)=a-b

(4p-7p)( 4p+7p)=p

Answer 2

Answer:

i)( 5a-6b)² = (5a-6b)(5a-6b) = 25a² + 36b² -60ab

ii) (4p-7q)(4p+7q) = 16p²+49q²

Step-by-step explanation:

i) ( by using (a-b)² formula )

ii) ( by using (a-b)(a+b) formula)