Question

if a= 2 ; b = -2 the value of a² - b² ​

Answer 1

a=2

b=-2

Then,

=(2)sq.-(-2)sq.

=4-4

=0

Answer 2

$\textbf{\underline{\underline{ANSWER}}}$



a = 2 b = - 2



a^2 - b^2 = ( a + b ) ( a - b )



= ( 2 - 2 ) ( 2 + 2 )



= 0 × 4



= 0



So your answer is 0.



Thanks