Pretest

Question 1

What is the factored form of n squared minus 25 ?

Revolt · Accepted Answer

open paren n minus 5 close paren times open paren n plus 5 close paren

Question 2

What is the completely factored form of x cubed minus 64 x ?

Revolt · Accepted Answer

x open paren x minus 8 close paren open paren x plus 8 close paren

Question 3

What is the factored form of 2 x cubed plus 4 x squared minus x ?

Revolt · Accepted Answer

x times open paren 2 x squared plus 4 x minus 1 close paren

Question 4

If a polynomial has three terms, x squared plus 12 x plus 36 , which factoring method can be considered?

Revolt · Accepted Answer

perfect-square trinomial

Question 5

What is the factored form of A squared minus 121 ?

Revolt · Accepted Answer

open paren A minus 11 close paren times open paren A plus 11 close paren

Question 6

If a polynomial has four terms, 3 x cubed plus 5 x plus 6 x squared plus 10 , which factoring method can be considered?

Revolt · Accepted Answer

factor by grouping

Question 7

What is the completely factored form of x y cubed minus x cubed y ?

Revolt · Accepted Answer

x y open paren x minus y close paren open paren x squared plus x y plus y squared close paren

Question 8

What is the completely factored form of 3 x to the 5th power minus 7 x to the 4th power plus 6 x squared minus 14 x ?

Revolt · Accepted Answer

open paren x to the 4th power plus 2 x close paren times open paren 3 x minus 7 close paren

Question 9

What is the factored form of 6 n to the 4th power minus 24 n cubed plus 18 n ?

Revolt · Accepted Answer

6 n open paren n cubed minus 4 n squared plus 3 close paren

Question 10

What is the completely factored form of x to the 4th power plus 8 x squared minus 9 ?

Revolt · Accepted Answer

open paren x squared minus 1 close paren times open paren x plus 3 close paren times open paren x minus 3 close paren

Pretest Answers