a)2√74 + 4√48 - √147 = 2√74 + 4√(16 * 3) - √(49 * 3) = 2√74 + 16√3 - 7√3 = 2√74 + 9√3
b)
√8+3√50 √2(√4 + 3√25)
------------ = ---------------------- = √4 + 3√25 = 2 + 3 * 5 = 2 + 15 = 17
√2 √2
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a)2√74 + 4√48 - √147 = 2√74 + 4√(16 * 3) - √(49 * 3) = 2√74 + 16√3 - 7√3 = 2√74 + 9√3
b)
√8+3√50 √2(√4 + 3√25)
------------ = ---------------------- = √4 + 3√25 = 2 + 3 * 5 = 2 + 15 = 17
√2 √2