Question

what is ...(a-b)(a+b) where a=-5678 and b=98...ist my school questions.

Answer 1

$(a - b)(a + b) \\ ( {a}^{2} - {b}^{2} ) \\ ( { - 5678}^{2} ) - ( {98}^{2} )$
solve the equation

Answer 2

Hey

Here is your answer,

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

Now, substituting its value

(a^2-b^2) = (5678^2-98^2)
=32239684-9604
=32230080

Hope it helps you!