Algebraic Expansion and Factorisation (HSC SSCE Mathematics Advanced): Quizzes

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Algebraic Expansion and Factorisation
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What is the relationship between expansion and factorisation?

They are inverse processes

What is 3(x+4)3(x + 4) when expanded?

3x+123x + 12

When expanding (x+2)(x+3)(x + 2)(x + 3), what is the result?

x2+5x+6x^2 + 5x + 6

What is (x4)(x+2)(x - 4)(x + 2) when expanded?

x22x8x^2 - 2x - 8

Using the perfect square pattern, what is (x+5)2(x + 5)^2?

x2+10x+25x^2 + 10x + 25

What is 6x+126x + 12 factorised?

6(x+2)6(x + 2)

To factorise x2+5x+6x^2 + 5x + 6, find two numbers that do what?

Multiply to 6 and add to 5

What pattern does x216x^2 - 16 follow?

Difference of two squares

For 2x2+7x+32x^2 + 7x + 3, what is step 1 of the splitting method?

Multiply 2×3=62 \times 3 = 6

How do you check if your factorisation is correct?

Expand brackets to get original

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