Grade 12 Assignment 1

Evaluate 16^-3/4

• 1/16

• 1/8

• 16^-3/4

• 1/⁴√(16³)

Simplify (3a³b³)(4ab²)²

• 48a⁵b⁷

• 144a⁴b⁵

• 144a⁶b¹²

• 48a⁸b¹⁰

Expand and simplify (x + 2)³

• x³ + 8

• x³ + 6x² + 12x + 8

• x³ + 6x² + 8

• x³ + 4x² + 8x + 8

Simplify (x² + 3x + 2)/(x² - x - 2)

• cannot be simplified

• (x(x + 3) + 2)/(x(x - 1) - 2)

• (x + 2)/(x - 2)

• (x + 3)/(x - 1)

Solve the equation x² - x - 12 = 0

• -3, 4

• 12

• 1, 12

• 3, -4

When solved, which equation gives 1 as a result?

• none

• x + 5 = 14 - x/2

• 2x/(x + 1) = (2x - 1)/x

• x² + 4x + 3 = 0

Evaluate -2x if x = 10

• -8

• 20

• -20

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4

b² + 4
when b = 3

• 10
• 12
• 13
• 11

152457295003898⁰

• ZERO

• 1

• 867548275

• NONE OF THESE