Sat math questions

Test Preparation
1

<p>3(x-7)(x-2)=k
in the equation above, k is a constant. If the roots of the equation are 7 and 2, what is the value of k?
answer is 0
but why?</p>

<ol>
<li>if x and y are two different integers and the product 35xy is the square of an integer, which of the following could be equal to xy?
a. 5
b. 70
c 105
d. 140
e. 350</li>
</ol>

<p>answer is d. 140 but why?</p>

<p>last weeks for prep :) please help guys </p>

<p>thank you</p>

2

<p><a href=“whw.name - whw Resources and Information.”>whw.name - whw Resources and Information.;

<p>number 13. section 3 please? :D</p>

3

<p>Hope this helps!</p>

<p>[imgur:</a> the simple image sharer](<a href=“http://imgur.com/ObSCJ]imgur:”>Imgur: The magic of the Internet)</p>