Question

Help!! 10 points. Thank you!

Answer 1

The answer is A.

When multiplying binomials, a useful way of remembering is the FOIL method (first*first, outside*outside, inside*inside, last*last).

We can find the correct answer by working backwards, which is basically just like finding the square root of each term in this expression.

For
`25x^2` we have to find the square:
`√(25x^2)`. The square root symbol and the exponent 2 basically cancel each other out, and the square root of 25 is 5.

Let's use the same method for
`-9y^2`.
`√(-9y^2) --> √(-9y) =  3y`. In this case, though, it will be written as -3y.

Now for
`z^2`:
`√(z^2) = z`

So the answer is
`5x - 3yz`.

Answer 2

I believe that the proper binomials that factor this expression would be C, if not it would be B.