Question

2radical5aupra5radical2-20supra radical10+(2radical10supra15-30supra radical40)=​

Answer 1

Răspuns:

Rezolvarea mai jos

Explicație pas cu pas:

Salutare ! ᕕ( ᐛ )ᕗ

2√5/5√2-20/√10+(2√10/15-30/√40)

• primul lucru care trebuie facut e sa rationalizam si sa scoatem de sub radical

❁❁Rationalizarile❁❁

2√5/5√2=2√5/5√2×√2/√2=2√10/10=√10/5

20/√10=20/√10×√10/√10=20√10/10=2√10

❁❁Scoaterea de sub radical❁❁

√40=√(2²×10)=2√10

ne rămâne : √10/5-2√10+(2√10/15-30/2√10)

√10/5-2√10+(2√10/15-15√10)

√10/5-2√10+2√10/15-15√10

❁❁Rationalizam din nou❁❁

√10/5-2√10+2√10/15-3√10/2

6√10/30-60√10/30+4√10/30-45√10/30

(6√10-60√10+4√10-45√10)/30

-95√10/30=-19√10/6

✰--------jsksksksk--------✰