Multiplying Polynomials Notes

Multiply (2a³ – a + 3)(a² + 3a – 5)

• 2a⁵ + 6a⁴ – 11a³ + 14a – 15

• 2a⁴ + 6a³ – 11a² + 14a – 15

• 2a⁵ – 6a⁴ – 11a³ + 14a – 15

• 2a⁵ + 6a⁴ – 9a³ + 14a – 15

Multiply 5jk(k-2)

• 5jk²-10j²k

• 5jk-10j²k

• 5jk²-2jk

• 5jk²-2j²k

The number of items is modeled by .3x²+.1x+2, and the cost per item is modeled by g(x)= -.1x²-.3x+5. Write a polynomial c(x) that can be used to model the total cost.

• -0.03x⁴-0.1x³+1.27x²-0.1x+10

• -0.3x⁴-0.1x³+1.27x²-0.1x+7

• -0.03x⁴+0.1x³+1.27x²-1.1x+10

• .2x² -.2x+7

Find the product (y-5)⁴

• y⁴ – 20y³ + 150y² – 500y + 625

• y⁴-625

• y⁴ +20y³ + 150y² + 500y + 625

• y⁴ – 20y³ –150y² – 500y – 625

(5x + 2)(x² - 3x + 6)

Mathematical Equivalence

ON

• 2x²+5x

• x²+6x

• x²-5x

• x²+5x

• 8w²+40w

• 9w²+40w

• 8w²+13w

• 8w+40w

• 9x²+36x+9

• 9x²-13x+9

• 9x²-36x-9

• 9x²-36x+9

• 3k³+21k²

• 4k³+21k²

• 3k³+21k

• 3k³+21k

• 63p³+45p²-9

• 63p²+45p+9

• 63p²-45p-9

• 63p²+45p-9