Answer:
multiply it by zero
Step-by-step explanation:
zero times anything is zero
Answer:

Step-by-step explanation:
Do FOIL, first outside inside last
3x × 3x = 9x^2
3x × -7 = -21x
7 × 3x = 21x
7 × -7 = -49

So it would just be 9x^2 - 49

Here we can simplify the product by multiply the square root 2 with square root 2 first.

=3*2
=6
So answer is 6
Answer:
add all of the sides together
Step-by-step explanation:
Answer:
<em>B.) 440</em>
Explanation:
I added everything together.