Posted by sam on .
find the following products... (5x3)(3x8)

algebra 
helper,
(5x3)(3x8)
Using FOIL, first, outer, inner, last
(5x3)(3x8)
First 5x * 3x = 15x^2
Outer 5x *  8 = 40x
Inner 3 * 3x =  9x
Last 3 * 8 = 24
put together
15x^2  40x  9x + 24
add similar terms,
15x^2  49x + 24