Question

Solve using suitable identities.
i)(7+)2.
ii)299 x 301.

Answer 1

Answer:

1. 7+2=9

2. (300-1)(300+1)

(300)^2- (1)^2

90000-1

89999

Answer 2

Step-by-step explanation:

i. 7+2 =9 Associative property

ii. 299=300−1 Distributive property

301=300+1

299×301

=(300−1)(300+1)

weknowthat(a−b)(a+b)=a²-b²

=90000−1

=89999