30÷5√3-3√5
rationalise the denominator
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Step-by-step explanation:
30÷5√3-3√5 × 5√3+3√5/ 5√3+3√5
30(5√3+3√5) ÷ 25×3-9×5
30(5√3+3√5) ÷ 75-45
30(5√3+3√5) ÷ 30
5√3+3√5
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