GCSE Maths Practice: quadratic-equations

Question 3 of 10

Solve the quadratic equation by factorisation.

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\( \text{Solve: } x^2 - 10x + 21 = 0 \)

Choose one option:

Identify numbers that multiply to the constant term and sum to the coefficient of x.

Factor the quadratic: \((x - 3)(x - 7) = 0\) gives the roots \(x = 3\) and \(x = 7\).