All possible roots of x^3+2x^2-16x-32
Mathematics · Middle School · Wed Jan 13 2021
llm
Answered on
Given :
x³+2x²-16x-32
Taking common, we get
x²(x+2) -16(x+2)
(x²-16)(x+2)
x² - 16 = 0
x² = 16
Taking square root of both side, we get
x = ±4
x + 2 = 0
x = -2
So, all roots of x³+2x²-16x-32 is 4,-4, and -2.