Unit-4: Polynomials, Expressions & Equations

adding & subtracting polynomials

100

(5bc² + 3bc + 3b) - ( 4bc² - 8bc - 2b)

bc² + 11bc + 5b

200

(-6x² + 11x - 2) + (-6x² +6x - 4)

-12x² + 17x -6)

300

(-13²+ 100 - 29) + (5³ + 80 - 44)

401

400

(8w³t² + 6wt² +6w) - (4w³t² - 2wt² - 3w)

4w³t² + 8wt² + 9w

500

(7q³r² 14qr² + 21q) - (14q³r² -3qr² - 5q)

7q³r²  + 17qr² + 26q

multiplying polynomials

100

(x + 7)(x+2)

x² + 10x +21

200

(4r + 7)(r-2)

4r² -r - 14

300

(5n - 3)²

25n² - 30n + 9

400

(9P² - 3q)(4p³ - 5)

36p⁵ - 45 p² -12qp³ + 15q

500

(4k-3)( -k³ + 6k -4))

-4k⁴ + +3k³ + 24k² - 34k + 12

factoring

100

x² -4x -45 

(x+9)(x-5)

200

x² -2x -35

(x + 5)(x-7)

300

x² + 11x + 28

(x +7)( x+4)

400

x² + 2x - 8

(x+ 4)(x -2)

500

If the area = x² + 12x + 20

and the width = (x + 2)

What is the length equal?

(x + 10)

solve by factoring

100

3x² - 30x + 75 = 0

x = 5

200

7x² + 35x = 5x - 8

-2/7, -4

300

9x² -25x -6 = 0

-2/9, 3

400

6x² -10x + 5 = 3x

5/3, 1/2

500

d = -9t² + 776

8, -8

countries

100

What country has the largest population?

India

200

This continent has the most countries

Africa

300

This is the oldest country

Japan

400

This is the newest country

South Sudan

500

This country has the longest name

The Democratic Republic of Congo