Multiply Polynomial Area

Multiply: (x + 5)(x + 4)

• x² + x + 20

• x² + 20x + 9

• x² + 9x + 20

• x² - 9x + 54

You can FOIL to multiply polynomials...

• When you have 2 binomials

• Any time

• When you have a monomial

• When you have only 1 binomial

(x − 3)(6x − 2)

• 6x² − 20x + 6

• 6x² + 20x - 6

• 6x² +6

• 6x + 6

Write the area as a sum using an area model.
(3x + 2)(2x + 4)

• 6x² + 16x + 8

• 5x² +11x + 6

• 5x² + 16x + 6

• 6x² + 11x + 8

(x-3)(x²+2x+7)

(Hint: Use the area model and make a 2 x 3 box to multiply)

• x³-x²+x-21

• x³+5x+13x-21

• x³-3x²+7x-21

• x²+2x-3

Write the area as a sum using an area model.
(3x – 1)(x + 5) 

• 3x² + 4x + 5

• 3x² + 4x - 5

• 3x² + 14x + 5

• 3x² + 14x - 5

(x-3)(x²+2x+7)

• x³-x²+x-21

• x³+5x+13x-21

• x³-3x²+7x-21

• x²+2x-3

What is the Area?

• 2x² - 3x - 18 inches²

• 2x² + 3x + 18 inches²

• 2x² + 9x - 18 inches²

• 2x² - 9x - 18 inches²