Multiplying and dividing polynomials

7.1

100

(x)(x)

what is x²?

200

(3x²)/-x

what is -3x?

300

(-30yx²)/10x

what is -3yx?

400

(25qrs)(1.5qr)

What is 37.5q²r²s?

500

40t²/(5t*7t)

What is 8/7?

7.2

100

(x)(x+7)

what is x²+7x?

200

(3x)(-2x+3)

what is (-6x²+9)?

300

(-4a+4b-7)(8a)

what is -32a²+32ab-56a?

400

((1/2)abc)((4/3)a+(1/4)b-7c)

(2/3)a²bc + (1/8)ab²c- (7/2)abc²

500

(-2a²b)(x-a-b+c)

what is -2a²bx+2a³b+2a²b²-2a²bc

7.3

100

(x²+x)/(2x)

what is (1/2)x+1/2?

200

(2x²y+8x)/2x

what is xy+4?

300

(2y²x-4.2yx²)/2y

what is yx-2.1x²

400

((2/3)b²-(1/3)ab+(1/3)a²b)/((1/3)b)

what is 2b-a+a²?

500

(-4.8x² + 3.6x - 0.4)/(0.2xy)

-24xy^-1+18y^-1-2x^-1y^-1

challenges

100

(x+1)(x-1)

what is x²-1?

200

90xyz/45x²y^-1z³

what is 2y²/xz²?

300

(2x-3)(4x-5y)

what is 8x²-10xy-12x+15y?

400

(x-4)(8x+7)

what is 8x²-25x-28?

500

(2x²-(1/4)x+(5/3)x)(3-x²)

what is 6x² - 2x⁴ + (51/12)x - 17x³?