Add/Subtract and Multiply polynomials - BIG DAWG

Adding polynomials

100

(3x^2 + 4x) +(2x^2 -3x)

5x^2 +x

200

(-4x^2+2x-3) +(5x^2-4x+8)

x^2-2x+5

300

( 8x^2-4x+3) +(7x^2+2x-11)

15x^2-2x-8

400

(5x^3+4x^2-2x+2) +2(2x^3-2x^2+x+5)

9x^3+12

Subtracting polynomials

100

(6x^2+4) -(3x^2+5)

3x^2-1

200

(2x-4)-2(4x-2)

-6x

300

(6x^2-5x+8)-(4x^2-7x+9)

2x^2+2x-1

400

(6x^3+4x^2-4x+5)-2(2x^3-3x^2+5x-5)

2x^3+10x^2-14x+15

multiplying polynomials

100

(2x-5)(3x+2)

6x^2-4x-10

200

(2x-4)(3x^2-6x+1)

6x^3-24x^2+26x-4

300

(2x^2-4x+6)(x^2+5x-2)

2x^4+6x^3-18x^2+38x-12

400

Ms.Waters wants to know how many desks can fit in her classroom next year. The length of her classroom is x+5 ft and the width of her classroom is x-4 ft. What is the area of her classroom? Area=LxW

X^2 +x-20 square feet 

Vocab

100

What is the DEGREE of 2x⁴+9x³-5x²+6

4

200

How many terms are in this polynomial? 4y⁵+6xy-3x²

THREE

300

Write an example of a polynomial with 4 terms and degree of 3.

Ms.Tran will check !

400

Like terms need to have...(two things!!)

1. Same variables 2. Same exponents