Complete the Square
Maths: Edexcel A Level Pure Maths, topic 2.2.4
Solving Quadratics - Complete the Square
Complete the square to find solutions to x2 + 6x + 4 = 0:
Write the equation
Complete the square
Rearrange
Square root
Rearrange for x
These are the two solutions
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What can be used to solve quadratics?