Question

Write the expression (4x-2) x 6(2x+7) in the standard from of a quadratic expression, ax^2+bx+c. What are the coefficients of each term and the constant term.
a= ?
b= ?
c= ?

Answer 1

A=48
b=144
c=-84

First, you simplify the second equation by multiplying 6 to 2x and 6 to 7.  Then, you get the two equations, (4x-2) times (12x+42).  You then use the FOIL method, multiplying 4x to 12x, 4x to 42, -2 to 12x, then -2 to 42.  Simplify.  Then number before x squared is your a value, value before x is b, and the value without x is c.