Wykonaj działanie:
(√5 - 2)√5 + 2√5
(√5 - 2)√5 + 2√5 = √5 * √5 - 2 * √5 + 2√5 = 5 - 2√5 + 2√5 = 5
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(√5 - 2)√5 + 2√5 = √5 * √5 - 2 * √5 + 2√5 = 5 - 2√5 + 2√5 = 5