Question

Use the formula (a+b)(a-b)=a^2-b^2 to evaluate 9.8 *10.2

Answer 1

ask if there is any doubt.

Answer 2

$\bold \blue{Hey \: Bud}$

⭐Your answer ⤵⤵

Formula = (a+b) (a-b) =a²-b²

Question = 9.8 × 10.2

(10-0.2) (10+0.2) = 10² - (0.2)²

= 100-0.04

=99.96

$\mathfrak{hope \: this \: is \: the \: required \: answer}$

Your Sam ❤