CCA1 LAS 4

If y=7,find the value of 2(y+4)

• 11

• 22

• 20

• 18

Work out the value of the following expressions when a = 3, b = 4 and c = 5.

a + b   

• 7

• 8

• 9

• 6

If x = 5, find the value of 7x-1.

• 34

• 36

• 35

• 37

When evaluating an expression what are the two main steps?

• 1. Substitute 

  2.  Simplify

• 1. Simplify|

  2.  Substitute

• 1. Add 

  2. 2 Multiply

• 1. Clap your hands

  2. Close your eyes

12 - 2n

• the difference of twelve and twice a number

• the sum of twelve and twice a number

• the product of two and twelve minus a number

• a number less than twelve

Translate: The product of 7 and x increased by 6

• 7x + 6

• (7/x) + 6

• (7 – x) + 6

• 7 + x + 6

Factor x³y - 4xy

• x(x²y - 4y)

• x²(xy - 4y)

• xy(x² - 4)

• xy(x - 2)(x + 2)

Expand and simplify (x + 2)³

• x³ + 8

• x³ + 6x² + 12x + 8

• x³ + 6x² + 8

• x³ + 4x² + 8x + 8

Simplify (3a³b³)(4ab²)²

• 48a⁵b⁷

• 144a⁴b⁵

• 144a⁶b¹²

• 48a⁸b¹⁰

Evaluate 16^-3/4

• 1/16

• 1/8

• 16-3/4

• 1/⁴√(16³)