Question

using identities, evaluate 71 ​

Answer 1

Answer:

(70+1)^2

70^2+1^2+2*70*1

4900+1+140

5041

here we use (a+b)^2identity

Step-by-step explanation:

Answer 2

Answer:

( a + b ) ² = ( 70+1 ) ²

= 70² + 1²

= 4900 + 1

= 4901

Hope it helps u

❤ Naina Raj ❤