+/- & x polynomials

+/- poly

100

(4+x)-(4-x)

2x

200

(2+h)-(-2+h)

4

300

2x²+7x-(x²+6x) 

x²+x

400

(3x-1) + (x +2)

4x+1

multiplying poly

100

(y-2)(y+2)

y²-4 

200

(c-3)²+9

c²-6c + 18

300

4x²(3x+8)

12x³+32x²

400

-x⁴y⁸(-7x³y)

7x⁷y⁹

word problem

100

You worked 5x+8 hours this week, and earn x-3 dollars per hour. Write an expression to represent how much you earned this week.

5x²-7x-24

200

You worked 5x+8 hours this week, and earn x-3 dollars per hour. Write an expression to represent how much you earned this week. 

 If x = 10, how much did you make in dollars?

$406

300

The length of a rectangular fence is 2x²+3x+1, and the width is 8x+1. Find the perimeter of the fence.

4x²+22x+4

400

(x-1)² is equivalent to....

x²-2x+1

500

²find the missing coefficient 

(2x-3)(4x-5)= 8x² +  ?x+15

-22