Posted by
Sandra on
.
Multiply
(x^2 + 8x + 15) / x – 4 * (x^2 – 16) / 2x + 6

Algebra 
Steve,
x^2+8x+15 = (x+3)(x+5)
so, you have
(x+3)(x+5)/(x4) * (x4)(x+4)/2(x+3)
the x+3 and x4 cancel, leaving
(x+5)(x+4)/2

Algebra 
Sandra,
That really helps, thanks.