Use the grouping method to factor 4x^3 +20x^2-3x-15
a) (x-5)(4x^2+3)
b)(x+5)(4x^2-3)
c)2x(x+1)(2x-15)
d)(x^2-5)(4x+3)

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Pentagon abcde is dilated according to the rule do,3(x,y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)