Efectuati calculele: a) 2√2x√5-3√5x√2+4√5x3√2-5√5x4√2

b) √21 : √7 - 5√15 : √5+2x3√3 - 4√30 : √10

What is 8 gallons per hour converted into pints per minute?

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Write a trinomial with 3x as the GCF of its terms.

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