Question

A polynomial p has zeros when x=5, x=-1, and x=-1/4. what could be the equation of p?

A. p(x)=(x+5)(x+1)(4x+1)
B. p(x)=(x-5)(x+1)(4x+1)
C. p(x)=(x+5)(x-1)(4x-1)
D. p(x)=(5x)(-1x)(-1/4x)

Answer 1

B

Explanation:

Given: x = 5 ; x - 5=0

x = -1; x+ 1= 0

x = -1/4; 4x + 1 = 0

Then; (x - 5)(x + 1)(4x + 1)