Question

using identy evaluate the following
(199)²-(101)²​

Answer 1

Answer:

${a}^{2} - {b}^{2} = (a - b)(a + b)$

${199}^{2} - {101}^{2} = (199 - 101)(199 + 101)$

$98 \times 300$

$29400$

Answer 2

Step-by-step explanation:

a² - b² = (a+b)(a-b)

199² - 101² = (199+101)(199-101)= 300 x 98

= 29400