Odpowiedź :
Odpowiedź:
6√2 + 7√2 = (6 + 7) * √2 = 13√2
14√11 - 9√11 = (14 - 9) * √11 = 5√11
6√7 - 5√7 + 3√7 = ( 6 - 5 + 3) * √2 = 4√2
√20 + √180 - √45 = √(4 * 5) + √(36 * 5) - √(9 * 5) = 2√5 + 6√5 - 3√5 =
= (2 + 6 - 3) * √5 = 5√5
Odpowiedź:
6√2 + 7√2 = (6 + 7) * √2 = 13√2
14√11 - 9√11 = (14 - 9) * √11 = 5√11
6√7 - 5√7 + 3√7 = ( 6 - 5 + 3) * √2 = 4√2
√20 + √180 - √45 = √(4 * 5) + √(36 * 5) - √(9 * 5) = 2√5 + 6√5 - 3√5 =
= (2 + 6 - 3) * √5 = 5√5