Factorising
Factorising
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1
Factorise fully
5x² – 80
2 Marks
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5(x - 4)(x +4)
2
a Factorise a² – b²
1 Marks
b Hence, determine 7.4² – 2.6²
1 Marks
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a (a - b)(a + b)
b 48
3
Factorise fully 8x² – 50²
2 Marks
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2(2x - 5)(2x + 5)
4
Factorise fully 18b² – 98²
2 Marks
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2(3a - 7)(3a + 7)
5
Factorise fully 75 – 3k²
2 Marks
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3(25 - k)(25 + k)
6
Factorise fully 7f² - 28
2 Marks
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7(f - 4)(f + 4)
7
Factorise fully 3x² + 15x – 18
2 Marks
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3(x +6)(x – 1)
8
Factorise fully 6x² – 21x – 12
2 Marks
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3(2x +1)(x - 4)
9
Factorise fully 12x² – 75
2 Marks
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3(2x - 5)(2x + 5)
Not fully exam level but good practice
10
Factorise 3x² – 4x – 7
2 Marks
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(3x – 7)(x + 1)
11
Factorise 2x² – 5x – 12
2 Marks
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(2x + 3)(x – 4)
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