Mathematics for IGCSE & O level - Surds (Section 2 - No. 45)

What is the value of x if x + y = 6 + 3√3 and y = 2 - √3?

4+2√3

8+4√3

8-4√3

4+4√3

解释

x = (6 + 3√3) - (2 - √3) = 4 + 4√3

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