The following steps are used to rewrite the polynomial expression (x + 4y+z)(x-7y). Step 1: x(x - 7y) + 4y(x - 7y) + z(x-7y) Step 2: x2 - 7xy + 4yx - 28y2 + zx - 7zy Step 3: x2 - 7xy + 4xy - 28y2 + xz - 7yz Step 4: r? - 3xy - 28y2 + x2 - 7yz dentify the property used in each of the steps:​

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.

i believe a. 12x≥120 is the answer