Which numbers should be multiplied to obtain 1652 - 1232?
A. 42 and 42
B.42 and 288

Question

Which numbers should be multiplied to obtain 1652 - 1232?
 A. 42 and 42
 B.42 and 288 <--- My Answer
 C.1,764 and 1,764 
 D.4,202 and 4,248

anonymous · Answer

I was unsure at first if this was correct to was just wanting to make sure

directrix · Answer

42 * 288 = 12096 so that is not it. 

None of these number pairs given multiply to 420 which is the difference of these two:  1652 - 1232

directrix · Answer

@caominhim     I think you may want to reconsider your post.

ganeshie8 · Answer

$$\large  165^2 - 123^2$$

directrix · Answer

I think there is more to it. I'm thinking that a factoring pattern is involved.

anonymous · Answer

oh yea im really sorry guys Ganeshie8 was rigt that's what its suppose to look like sorry that was my bad

directrix · Answer

Over here at http://openstudy.com/updates/53630dbfe4b0fac5fcfecc40 , @WeakMathSkills gave a direct answer of 42 and 288 but gave no explanation.

directrix · Answer

Oh, you didn't show the exponents. I see.

directrix · Answer

Neither did @deicyg on the other rendering of this problem.

directrix · Answer

165^2 - 123^2 = 

(165 + 123)*(165 - 123)  --> difference of two squares pattern

directrix · Answer

@Anime101 

Add  (165 + 123) and post what you get.

Do the same for (165 - 123), okay?

anonymous · Answer

ok so (165+123) I got 288 and for the other one I got 42

directrix · Answer

Okay, so that is resolved. 

It is good to take the extra time to write the exponents as exponents.
Use the carat key.

165^2 - 123^2

anonymous · Answer

oh ok thank you so much that's actually all the questions (: