rozwiażcie proszeee
(10 - √2)*(2 + √2) = 6 + a√2
20 + 10√2 - 2√2 - 2 = 6 + a√2
18 + 8√2 - 6 = a√2
a√2 = 12 + 8√2 /:√2
a = (12 + 8√2)/√2
a = √2(12 + 8√2) / (√2 * √2)
a = (12√2 + 16) / 2
a = 6√2 + 8
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(10 - √2)*(2 + √2) = 6 + a√2
20 + 10√2 - 2√2 - 2 = 6 + a√2
18 + 8√2 - 6 = a√2
a√2 = 12 + 8√2 /:√2
a = (12 + 8√2)/√2
a = √2(12 + 8√2) / (√2 * √2)
a = (12√2 + 16) / 2
a = 6√2 + 8