Which of the following is the standard form

of the polynomial function y = x (x + 5) (x - 3) ?

y = x2 + 2x - 15

y = x3 - 8x2 - 15x

y = x2 - 8x - 15

y = x3 + 2x2 - 15x

Question

Kristin Hurley

Mathematics

25 January, 18:00

Which of the following is the standard form

of the polynomial function y = x (x + 5) (x - 3) ?

y = x2 + 2x - 15

y = x3 - 8x2 - 15x

y = x2 - 8x - 15

y = x3 + 2x2 - 15x

+3

Answers (1)

Know the Answer?

Haven Gallegos · Answer 1

y = x³ + 2x² - 15x

Step-by-step explanation:

Given

x (x + 5) (x - 3) ← expand the second pair of factors using FOIL

= x (x² - 3x + 5x - 15)

= x (x² + 2x - 15) ← distribute the parenthesis by x

= x³ + 2x² - 15x

Which of the following is the standard formof the polynomial function y = x (x + 5) (x - 3) ?y = x2 + 2x - 15y = x3 - 8x2 - 15xy = x2 - 8x - 15y = x3 + 2x2 - 15x

Which of the following is the standard form

of the polynomial function y = x (x + 5) (x - 3) ?

y = x2 + 2x - 15

y = x3 - 8x2 - 15x

y = x2 - 8x - 15

y = x3 + 2x2 - 15x