√80-√45=√x
Powiedzcie jak to się robi!
√80-√45=√x4√5-3√5=√x
√5=√x
x=5
podnosisz obie strony do kwadratu
80-2 √80*45+45=x
125-2√3600=x
125-2*60=x
x=125-120=5
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√80-√45=√x
4√5-3√5=√x
√5=√x
x=5
podnosisz obie strony do kwadratu
80-2 √80*45+45=x
125-2√3600=x
125-2*60=x
x=125-120=5
x=5