8.3 Multiplying Polynomials
Quadratic Expressions The result of multiplying two linear expressions
Example 1: Find the Product! a)(z – 6)(z – 12)b) (5x – 4)(2x + 8) c) (3x + 5)(2x – 6)
You Try! 1.(x – 2)(x + 4)2. (2x + 1)(x + 5) 3. (x + 3)(x – 3)
Example 2 The area of a rectangle is the measure of the base times the height. Write an expression for the area of the rectangle.
Example 3 The area A of the triangle is one half the height h times the base b. Write an expression for the area of the patio.
Example 4 Sometimes we multiply trinomials together or binomials with trinomials. Continue to use the box method!!! a)(3a + 4)(a 2 – 12a + 1) b)(2b 2 + 7b + 9)(b 2 + 3b – 1)
EXIT SLIP Multiply (3z + 2)(4z 2 + 3z + 5).