Quadratic +/-

Maths: Edexcel A Level Pure Maths, topic 2.2.1

Solving Quadratics

Quadratics have two solutions, remember to include both of them when answering a question.

x2 has two solutions

x² has two solutions

+5 and -5

+5 and -5

√5 is a solution

√5 is a solution

− √5 is also a solution

− √5 is also a solution

Test yourself on Quadratic +/-

Which of these equations has two solutions for x?
Which of these are solutions to the equation:
x² = 7
Which of these are solutions to the equation:
x² = 19
What are the solutions for the equation:
x² = 6
What are the solutions for the equation:
x² = 11

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