2.1 Class Quiz 4: Expansion and Factorisation

Quiz by Ms Choi

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10 questions

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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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