Question

use the identity to evaluate (8.6)^2​

Answer 1

Answer:

(8.6)² =53.96

Step-by-step explanation:

(8.6)² = (8 + 0.6)²

So,

(8 + 0.6)²= 8²+2(8)(0.6)+(0.6)²     {(a+b)² =a²+2ab+b²}

               = 64+9.6+0.36

               = 53.96

Therefore 8.6² = 53.96

MARK AS BRAINLIEST PLS

Answer 2

Answer:

(8.6)^2=(8+0.6)^2

8^2+2(8)(0.6)+(0.6)×(0.6)....using identity

(a+b)^2=a×a+2×a×b+b×b

=64+9.6+0.36

=(8.6)×(8.6)=53.96..Answer❤