Posted by Alice on Friday, November 11, 2011 at 7:21pm.
Base of a triangle is 12 inches longer than twice the length of altitude x. Write polynomial area of triangle.

math  bobpursley, Friday, November 11, 2011 at 8:02pm
area= b*x
b= 2x+12
area= 2x^2+12x 
math  Alice, Saturday, November 12, 2011 at 12:07am
Thanks!