Question
Simplify: 3√50 − 2√8 + √18
Solution
ATQ, √50 = 5√2, √8 = 2√2, √18 = 3√2 = 3(5√2) − 2(2√2) + 3√2 = 15√2 − 4√2 + 3√2 = 14√2
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