Expanding Brackets - Jones the Sum
Expanding Brackets
1. Expand 3(2x – 5)
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2. Expand and simplify 4(3x – 1) – 3(x – 5)
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3. Simplify (5x3)2
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4. Expand and simplify (x + 7)(x - 3)
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5. Make d the subject of the formula
4(d – 2e) = 7 + 3e
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Factorising
6. Factorise (a) 10x + 15 (b) 14 + 7x (c) 3x2 + 5x (d) 12x2 – 8x
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7. Factorise (a) x2 +8x + 12 (b) x2 – 6x + 8 (c) x2 + 8x – 20
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