Proszę o pomoc ! !Pliiissss √-pierwiastek
√7+ 2√7+7√7=
3(2√11+8√7)=
2(√2-5√5)-5√2+2√5=
5(5√2+2)-2(2√2+2)=
√7+ 2√7+7√7=10√7
3(2√11+8√7)= 6√11+24√7
2(√2-5√5)-5√2+2√5= 2√2 - 10√5 -5√2+2√5= -3√2 -8√5
5(5√2+2)-2(2√2+2)=25√2 +10-4√2-4 = 21√2 =6
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√7+ 2√7+7√7=10√7
3(2√11+8√7)= 6√11+24√7
2(√2-5√5)-5√2+2√5= 2√2 - 10√5 -5√2+2√5= -3√2 -8√5
5(5√2+2)-2(2√2+2)=25√2 +10-4√2-4 = 21√2 =6