Question

(2) Ussing identity Eualuate
(a) 51×52​​

Answer 1

Step-by-step explanation:

51 × 52

(50 +1) (50+2)

$50 ^{2} +( 1 + 2)50 + 1 \times 2$

= 2500 + 50 + 100 + 2

= 2652

hope this will be helpful

pls mark me as brainliest

Answer 2

51 x 52

= (50+1) x (50+2)

using the identity

(x+a)(x+b) = x²+(a+b)x+ab

here

x=50

a=1

b=2

Appling

${x}^{2} + (a + b)x + ab \\ {50}^{2} + (1 + 2)50 + 1(2) \\ 2500 + 150 + 2 \\ 2652$

hence Answer is 2652