5.3 Multiply Polynomials

Don't rely too much on FOIL.  There will be questions on the common exam that cannot be done using FOIL.

Easy:

• Expand `3x(x - 7)` 
• Expand `(x - 5)(x + 4)` 
• Expand `(2x - 5)(3x + 7)` 
• Expand `(3a + 2b)(5a - 2b)` 
• Expand `(x - 5)^2` 

Medium:

• Expand `(1/3 x + 2)(2/5x - 4)` 
• Expand `(2x + 7)(x^2 - 4x - 7)` 
• Expand `(x^2 + 3x + 8)^2` 
• Expand `(x^2 + 5)(2x -3)` 
• Expand `(x^3 + x + 1)(x^2 + 1)` 
• Expand `(3a + 2b)(4c - 5d)` ` `