2.1 Class Quiz 4: Expansion and Factorisation

Quiz by Ms Choi

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10 questions
• Q1

Which is the correct expansion of: (3m + 4)(m - 6)

$3m^2-18m+4m-24$

$3m^2-18m+4m+24$

$3m^2+18m-4m+24$

$3m^2+18m-4m-24$

60s
• Q2

Find the coefficient of the xy term in the expansion of (10x - 3y)(4x - 9y).

-78

78

-102

102

60s
• Q3

Factorize (3x+ 7)2 - (3x + 7)(2x - 1).

(3x + 7)(x + 8)

(3x + 7)(x + 6)

(3x + 7)(5x + 8)

(3x + 7)(5x + 6)

60s
• Q4

Factorize 2ax - 5by - bx + 10ay.

(2a - b)(x + 5y)

(2a + b)(x + 5y)

(2a - b)(x - 5y)

(2a + b)(x - 5y)

300s
• Q5

Factorize (x + y)(x - y) - x - y.

(x + y)(x - y + 1)

(x - y)(x + y + 1)

(x - y)(x - y -1)

(x + y)(x - y -1)

300s
• Q6

Expand: 3(5x - 2)

5x - 6

5x - 2

15x - 2

15x - 6

45s
• Q7

Expand  (–3 + y)(6y).

3 + 12y

18y + 6y2

–18y + 6y2

–3y + 7y2

45s
• Q8

Expand (x2 + 2)(x2 – 2).

x4 – 4

x4 + 4

2x2 – 4

2x2 + 4

60s
• Q9

Expand (3h- 8)(5h - 11).

15h2 + 73h + 88

B.

15h2 - 73h + 88

15h2 + 73h - 88

15h2 - 73h - 88

120s
• Q10

Simplify (5x- 3y) - (2x- 5y).

3x + 2y

7x - 8y

3x - 8y

7x + 2y

60s

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