Quiz 1 - Algebra: Substitution, Expanding, and Factorising

Expand

2(x + 3)

• x + 6

• 2x + 3 

• 2x + 6

• 6x + 50

Expand and simplify 4(7x + 3)

• 28x + 12

• 28x + 3

• 47x + 12

• 47x + 3

Expand and simplify 5(2 - 3y)

• 10 - 3y

• 10 - 15y

• 10 + 15y

• 10 - 2y

Expand and simplify -3( 2r + 5s)

• -6r - 15s

• -6r + 15s

• -6r - 15

• -6r + 2s

What is the missing factor?

• 1

• 5

• 3

• 2

What is the missing factor?

• 3

• 5

• 6

• 7

What are the missing factors?

• 2 and 3

• 3 and 6

• 3 and 3

• 1 and 9

What are the prime factors of 30?

• 2, 3, 5

• 2 and 15

• 3, 3, 5

• 2, 2, 7

Which answer is 3ab in expanded form?

• 3 x 1

• 3 x a x b

• 3 x a

• 3 x b