Wyłącz czynnik pod znak pierwiastka :
Włącz czynnik pod znak pierwiastka
Zapisz w prostej postaci:
zad1
√112=√16·√7=4√7
√153=√9·√17=3√17
∛108=∛27·∛4=3∛4
zad2
5√7=√25·√7=√175
5∛10=∛125·∛10=∛1250
zad3
8√5+2√245-3√80=8√5+2·√5·√49-3√16·√5 =8√5+14√5-12√5 =10√5
√112 = √16 *√7 =4√7
√153 =√9 *√17 = 3√17
∛108 = ∛27 *∛4 = 3∛4
5√7 = √5²*7 = √25*7 = √175
5∛10 = ∛5³*10 = ∛125*10 = ∛1250
3)
= 8√5 + 2√(49*5) - 3√(16*5) =
= 8√5 + 14√5 - 12√5 =
=10√5
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zad1
√112=√16·√7=4√7
√153=√9·√17=3√17
∛108=∛27·∛4=3∛4
zad2
5√7=√25·√7=√175
5∛10=∛125·∛10=∛1250
zad3
8√5+2√245-3√80=8√5+2·√5·√49-3√16·√5 =8√5+14√5-12√5 =10√5
√112 = √16 *√7 =4√7
√153 =√9 *√17 = 3√17
∛108 = ∛27 *∛4 = 3∛4
5√7 = √5²*7 = √25*7 = √175
5∛10 = ∛5³*10 = ∛125*10 = ∛1250
3)
= 8√5 + 2√(49*5) - 3√(16*5) =
= 8√5 + 14√5 - 12√5 =
=10√5