5_10_18 Algebra 2B Review Practice set

Solve using the quadratic formula: 3x² = -10x - 5

• (-5±√10)/3

• (-10±√10)/3

• (-5±i√10)/3

• (-5±√10)/6

Which of the following is the factorization of x³+125

• (x+5)(x²⁺25)

• (x+5)(x+5)(x+5)

• (x+5)(x²-5x+25)

• x³+125 is prime

Find the remainder: (2x³-9x²+7x+1)÷(x-3)

• -151

• -67

• -23

• -5

Factor completely 12x³-16x²+15x-20

• (12x-5)(x+4)

• (3x-4)(4x²+5)

• (2x-5)(2x+5)(3x-4)

• (4x+5)(3x+4)

Evaluate 10000^-1/4

• 1/10

• 1/100

• 10

• 100

Write the expression in radical notation. 8x^2/3

• 4∛x²

• 8√x³

• 8∛x²

• ∛8x²

Simplify √(75x⁴y⁵)

• 3x⁴√(5y⁵)

• √(75x⁴y⁵)

• √(75x⁴y⁵)

• 5x²y² √(3y)

Find the inverse of y=5x-3

• y=x/5+3

• y=5x+3

• y=(x+3)/5

• y=3x-5

Solve the equation. Check for extraneous solutions. √(3x+10)=5-2x

• x=5

• x=3/4

• x=5, 3/4

• x=1/5, 4/3

Graph f(x)=4(1/6)^x

• a

• b

• c

• d