What is the standard form of # y= (2x+4)(x-4)(2x+1)#?
1 Answer
Jul 29, 2018
Explanation:
#"the standard form of a polynomial of degree 3 is"#
#•color(white)(x)y=ax^3+bx^2+cx+d color(white)(x);a!=0#
#"Expand the factors and collect like terms"#
#=(2x+4)(2x^2-7x-4)#
#=4x^3-14x^2-8x+8x^2-28x-16#
#=4x^3-6x^2-36x-16larrcolor(blue)"in standard form"#
