Question

What is the value of (500,001) squared -(499,999)

squared

Answer 1

any tips for this problem?

Answer 2

this is simple

Answer 3

Difference of squares

Answer 4

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

Answer 5

ahh

Answer 6

so

Answer 7

ehh

Answer 8

ahh

Answer 9

well

Answer 10

if you subtract 500,001 and 499,999, you get 2

Answer 11

yup

Answer 12

what's the trick for this problem?

Answer 13

add 6 zeros?

Answer 14

cause 500,001 and 499,999=1,000,000

Answer 15

what is 500001+499999=?

Answer 16

1,000,000 times 2=2,000,000?

Answer 17

is that the trick?

Answer 18

u got it.

Answer 19

find the difference of the 2 numbers and the sum then multiply?

Answer 20

yes.

Answer 21

k

Answer 22

next problem

Answer 23

after tonks finishes writing

Answer 24

500001^2 - 499999^2 = (500001 + 499999)(500001 - 499999)
You already got it, I'm so slow!

Answer 25

k

Answer 26

unto the next problem :)

Answer 27

these are PSAT ?s

Answer 28

so you have to be fast