Question

using the formula
$(a - b) {}^{2} = a {}^{2} - 2ab + b {}^{2}$
evaluate
$(499) {}^{2}$
​

Answer 1

Answer:

249001

Step-by-step explanation:

(499)^2

=(500-1)^2

=(500)^2 -2(500)(1)+(1)^2

=250000-1000+1

=249000-1

=249001

If you calculate 499x499 on the calculator, the answer will be the same

Hope it helps!!

Answer 2

Answer:

Step-by-step explanation:

IT'S (500-1)²

500²+1²-2*500*1

250001-1000

=249001.