Q2 of 59 Page 263

Evaluate the following by using suitable identities:
992²

Given: 992² = (900 + 2)² = (900)² + 2(900)(2) + (2)²

= 8100 + 3600 + 4, where a = 900 and b = 2 in the identity (a + b)² = a² + 2ab + b²

= 11704

Evaluate the following by using suitable identities:

304²

Evaluate the following by using suitable identities:

509²

Evaluate the following by using suitable identities:

799²

Evaluate the following by using suitable identities:

304 × 296

Questions · 59

11. Algebraic Expressions

1 1 1 1 1 2 3 4 4 4 4 4 5 6 7 1 2 3 4 5 6 7 8 1 1 1 1 2 2 2 2 3 3 3 3 4 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 1 1 1 2 2 3 3

Evaluate the following by using suitable identities:9922