Answer: first problem: 2w-5w
Second problem: one side increases by 4 and another side decreases by -22.
Step-by-step
For the first question: make a rectangle and label the length 2w-5 and the width 5. Next, write w(2w-5). Draw a arrow from w to 2 and another arrow from w to 5. Lastly write 2w^2-5w. Answer: 2w^2-5w
2nd question: make a rectangle. For the length write 10 and for the width write 8 and inside the rectangle write 80. Then draw a arrow and on top of the arrow write +88 and then drew another rectangle and for the length write x+10 and for the width write x+8 and inside the rectangle write 168. Then write this on the bottom of the rectangles;
(x+10) (x+8) =168
X^2+8x+10x+80=168
-168. -168
X^2+18x-88=0
Then make a T-chart and on one of the top column write (x-4) and on the other top column write (x+22)=0
And on the bottom of (x-4) write X=4 and in parenthesis write (increase)
And on the bottom of (x+22)=0 write X=-22 and in parenthesis write (decrease)
Then on the area so of the T-chart write 88 and underline it and write -4+22=18 D. S large +.
-Tell me if you get what I am saying. And good luck!
