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-2√2(a+√2b)-4(a√2-2b)


Odpowiedź :

-2√2(a+√2b)-4(a√2-2b)=-2√2a-4b-4a√2+8b=-6√2a+4b
-2√2(a+√2b)-4(a√2-2b) =-2√2a - 4b - 4√2a + 8b = -6√2a + 4b
-2√2(a+√2b)-4(a√2-2b) =-2√2a-4b-4√2a+8b=-6√2a+4b