What you'll learn

• 1Factorise x² + bx + c: find two numbers that multiply to c and add to b.
• 2Solve by setting each factor to zero.
• 3Use the quadratic formula when factorising is hard.
• 4Rearrange formulae by isolating the target variable.

Question mix

• Fill the gap×1
• Multiple choice×3
• Short answer×1

• 1

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• 2

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• 3

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