Add.Sub Polynomials

Presentation

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Mathematics

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7th - 9th Grade

•

Medium

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CCSS

HSA.APR.A.1

Standards-aligned

Benny Boyd

Used 10+ times

FREE Resource

5 Slides • 5 Questions

Add or Sub Polynomials

EQ: How do you add or subtract polynomial expressions?

Adding Polynomials

Distribute if necessary.
$a\left(b\pm c\right)=ab\pm ac$
Add the like terms together. Don't forget that subtraction is adding the opposite.
Put the expression in standard form (Terms are arranged in descending degree order).

Multiple Choice

(2x + 5y - z) + (-6x - 4y + 7z)

-4x +6y + 6z

4x + y + 6z

-4x - y + 6z

-4x + y + 6z

Multiple Choice

(4x³-5x²+3x)+(-2x³-x²+6x)

2x³-6x²-9x

2x³+6x²+9x

-2x³-6x²+9x

2x³-6x²+9x

Subtracting Polynomials

Add the opposite or distribute the minus sign to every term in the second polynomial.
Combine your like terms or line them up vertically and add.

Multiple Choice

Simplify
(4x³-3x² + 6x - 4) - (-2x³ + x² -20)

4x² - 6x³- 2x + 6

3x + 5x²+ 1

6X³ -4X² + 6X -2

3x + 2

Multiple Choice

Find the difference.
(3- 2x + 2x²) - (4x -5 +3x²)

x_² + 6x + 8

2x²+ 5x - 7

-x²-6x + 8

-2x² + 11x - 4

Multiple Choice

What type of polynomial is this and what is its degree?

5b³ - 3 + 6b

Quartic trinomial

Cubic monomial

Cubic trinomial

Quartic polynomial

Add or Sub Polynomials

EQ: How do you add or subtract polynomial expressions?

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