Bluebook SAT Test Equivalent Expressions 5

Question 1

Which of the following is equivalent to (x² − 4x − 21)/(x − 7)?

Accepted Answer

x + 3

Answer

x − 3

Answer

x + 7

Answer

x − 7

Question 2

Which of the following is equivalent to 12x²y³ − 8xy²?

Accepted Answer

4xy²(3xy − 2)

Answer

4xy(3xy² − 2y)

Answer

4x²y²(3y − 2)

Answer

2xy²(6xy − 4)

Question 3

Which of the following is equivalent to (x + y)² − (x − y)²?

Accepted Answer

4xy

Answer

2x²

Answer

2y²

Answer

4x²

Question 4

Which of the following is equivalent to (x² + 4)/(x + 2)?

Accepted Answer

x − 2 + 8/(x + 2)

Answer

x + 2

Answer

x − 2

Answer

x + 2 − 8/(x + 2)

Question 5

Which expression is equivalent to 3x(x − 2) + 4(x − 2)?

Accepted Answer

(3x + 4)(x − 2)

Answer

(3x − 4)(x + 2)

Answer

3x² + 4x − 2

Answer

(3x + 4)(x + 2)

Question 6

Which of the following is equivalent to (2x/(x+1)) − (3/(x+1))?

Accepted Answer

(2x − 3)/(x + 1)

Answer

(2x − 3)/(2x + 2)

Answer

−1/(x + 1)

Answer

(2x + 3)/(x + 1)

Question 7

Which of the following is equivalent to (x^4 − 16)/(x² − 4)?

Accepted Answer

x² + 4

Answer

x² − 4

Answer

x² + 2x + 4

Answer

x + 2