8-3 Multiplying Polynomials again

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Multiplying Polynomials Be able to use different methods to multiply two polynomials.

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Presentation transcript:

8-3 Multiplying Polynomials again Goal: Multiply polynomials using the FOIL method Eligible Content: A1.1.1.5.1

Vocabulary FOIL Method – a method that can be used to multiply 2 binomials together. If you like the Box Method, you can still use it.

FOIL F – first term in each parentheses O – outside terms I – inside terms L – last term in each parentheses

Multiply using the FOIL method

Examples (3x + 2)(2x + 4) (y + 6)(2y – 5) (2k – 8)(k – 7) (-2n + 4)(3n + 5) (x + 2)(x – 9) 6x2 + 16x + 8 2y2 + 7y – 30 2k2 – 22k + 56 -6n2 + 2n + 20 x2 – 7x – 18

Find (c + 2)(c – 4). A. c2 – 6c + 8 B. c2 – 4c – 8 C. c2 – 2c + 8 D. c2 – 2c – 8

Find (x + 3)(4x – 1). A. 4x2 – 11x – 3 B. 4x2 + 11x – 3 C. 4x2 + 13x – 3 D. 4x2 + 12x – 3

Find (x + 2)(x – 3). A. x2 + x – 6 B. x2 – x – 6 C. x2 + x + 6 D. x2 + x + 5

Find (3x + 5)(2x – 6). A. 5x2 – 8x + 30 B. 6x2 + 28x – 1 C. 6x2 – 8x – 30 D. 6x – 30

Practice Worksheet – “8-3 Multiplying Binomials using the FOIL Method.”

Homework Page 483 #12-23