Réitigh sqrt{8}+-sqrt{18}+-sqrt{18} | Réiteoir Mata Microsoft

Luacháil

Tráth na gCeist

Arithmetic

5 fadhbanna cosúil le:

Fadhbanna den chineál céanna ó Chuardach Gréasáin

https://socratic.org/questions/how-do-you-simplify-sqrt2-sqrt7-sqrt-2-sqrt-7

https://socratic.org/questions/how-do-you-simplify-sqrt2-3-sqrt5-sqrt2-sqrt7

https://socratic.org/questions/how-do-you-solve-2-sqrt-18-2-sqrt-54-4-sqrt-6

https://socratic.org/questions/how-do-you-multiply-5sqrt-8-2sqrt-18-3sqrt-10

https://socratic.org/questions/how-do-you-evaluate-sqrt-2-sqrt-17-sqrt-15-sqrt-7

Roinn

Cóipeáladh go dtí an ghearrthaisce

2\sqrt{2}-\sqrt{18}-\sqrt{18}

Fachtóirigh 8=2^{2}\times 2. Athscríobh fréamh cearnach an toraidh \sqrt{2^{2}\times 2} mar thoradh na bhfréamhacha cearnacha \sqrt{2^{2}}\sqrt{2}. Tóg fréamh chearnach 2^{2}.

2\sqrt{2}-3\sqrt{2}-\sqrt{18}

Fachtóirigh 18=3^{2}\times 2. Athscríobh fréamh cearnach an toraidh \sqrt{3^{2}\times 2} mar thoradh na bhfréamhacha cearnacha \sqrt{3^{2}}\sqrt{2}. Tóg fréamh chearnach 3^{2}.

2\sqrt{2}-3\sqrt{2}-3\sqrt{2}

Fachtóirigh 18=3^{2}\times 2. Athscríobh fréamh cearnach an toraidh \sqrt{3^{2}\times 2} mar thoradh na bhfréamhacha cearnacha \sqrt{3^{2}}\sqrt{2}. Tóg fréamh chearnach 3^{2}.

2\sqrt{2}+2\left(-3\sqrt{2}\right)

Comhcheangail -3\sqrt{2} agus -3\sqrt{2} chun 2\left(-3\sqrt{2}\right) a fháil.

2\sqrt{2}-2\times 3\sqrt{2}

Méadaigh 2 agus -1 chun -2 a fháil.

2\sqrt{2}-6\sqrt{2}

Méadaigh -2 agus 3 chun -6 a fháil.

-4\sqrt{2}

Comhcheangail 2\sqrt{2} agus -6\sqrt{2} chun -4\sqrt{2} a fháil.