What is the #y#-intercept of #p(x)=2(x^2-4)(x-3)#?

2 Answers
Jul 16, 2018

#x=-2,2,3#

Explanation:

For the y-intercept must be
#p(x)=0#
this

#2(x^2-4)(x-3)=0#
and we get

#x^2-4=0# so #x_1=2# or #x_2=-2#

or

#x-3=0# so #x_3=3#
and the y -intercept is #p(0)=2*(-4)*(-3)=24#

My corrections.

Jul 16, 2018

#"y-intercept "=24#

Explanation:

#"set x = 0 for y-intercept"#

#p(0)=2(0-4)(0-3)=2(-4)(-3)=24#