Question

Evaluate (3.8) -(2.8)' using algebraic Identity.​

Answer 1

Step-by-step explanation:actually it is in correct solution 3.8-2.8=1

3.8=3+0.8

2.8=3-0.2

(x+a)(x+b) =x^2+(a+b)x+ab

(3+0.8)(3+-0.2)=3^2+(0.8-0.2)3+(0.8×-0.2)

=9+0.18-0.16

=8.98