Algebra Exam Review (Mixed)

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Simplify

• x⁴
• x⁶
• x²⁹
• x²⁰

Simplify.

• y⁶⁰
• ¹/_y¹⁶
• y^-16
• y⁴

Factor
k²+7x+10

• (k+2)(k+5)
• (k-2)(k-5)
• (k+10)(k+4)
• (k+2)(k-5)

Solve using square roots.
5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solution

Find the zeros of this quadratic.

• b=4/5, b=3
• b=4, b=-3
• b=1/5, b=3
• b=4/5, b=-3

Factor 
3x² + 2x - 21

• A. (3x + 7)(x - 3)
• B. (3x - 7)(x + 3)
• C. (3x - 7)(x - 3) 
• D. (3x + 7)(x + 3) 

• A
• B
• C
• D

Simplify the following radical: √24

• 2√6
• 4√6
• 2√12
• 3√8