Question

Evaluate using identities 9.2 × 8.8

Answer 1

Answer:

80.96

Useful identity here is $(a+b)(a-b)=a^2-b^2$, here $a=9$ and $b=0.2$.

Therefore, 9.2 × 8.8 = 9² - 0.2² = 81 - 0.04 = 80.96.

Thanks for points XDxd