Question

factories {(999)}^{2} - 1
plz answer properly !
And step by step !
if you give useless answer !
I will report your answer !
I will mark you as brainliest !
If you answer correctly!​

Answer 1

Answer:

{(999)}^{2} - 1

=(999)^2-(1)^2

=(999+1)(999-1)

=(1000)(998)

=998000

By using the identity,

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

Answer 2

Answer:

998000.

Step-by-step explanation:

999^2 - 1.

= [(1000-1)^2] - 1

(1000-1)^2 is of the form, (a - b)^2.

Using Identity,

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

(1000-1)^2 ==>

1000^2 - 2(1000)(1) + 1^2.

1000000 - 2000 + 1.

=998001 .

Now,

[(1000-1)^2] - 1 ==>

[ 998001 ] - 1

===>

998000.

Hope this helps!!!! Please do mark me BRAINLIEST if you think the answer is worth it ☺️.