
Let's factor all four of these before we multiply.
x² - 25 We want two numbers that add to -25 and multiply to 0.
= (x+5)(x-5)
x² - 2x
Both terms are divisible by x.
= x(x-2)
x - 2unfactorable
x² + 5x
Both terms are divisible by x.
= x(x+5)
Now we have this:

Let's go ahead and multiply across.

Cancel out the (x+5) and (x-2) from the top and the bottom.
<span>systematic
this method called "</span><span>systematic random sampling"
</span>
Answer:
575 cm
Step-by-step explanation:
5 * 100 = 500
15*5=75
500+75 = 575
You would need 88 boxes. dividing 962 by 11 would lead to 87.45, but the remains cannot just be left out therefore you’d need 88 boxes