Question

evaluate using identities 51*59​

Answer 1

Answer:

Ans=309

Step-by-step explanation:

51*59

=(50+1)*(60-1)

=300-50+60-1

=309

Answer 2

Answer:3009

Step-by-step explanation:

51×59

(55-4)×(55+4)

Using identity___ (a-b)(a+b)=a^2 - b^2(a square - b square)

(55)^2 - (4)^2 (^2 means square)

3025 - 16

3009.

Hope it helps you..