Question

introduceti factori sub radical a)-3radical7;b)-10radical5
AJUTOR!!!!

Answer 1

a)-3radical7=√(-3)²×7 = √9×7 = √63

b)-10radical5=√(-10)²×5 = √100×5 = √500

a=2supra3radical3+radical3 supra 3

Rationallizam cu √3 prima fractie   2√3/3×3 = 2√3/9

a = 2√3/9 + √3/3

a = 2√3/9 + 3√3/9 = 5√3/9

b=4 supra radical3-2radical3 supra 3

Rationallizam cu √3 prima fractie   4√3/3 = 4√3/3

b = 4√3/3 - 2√3/3 = 2√3/3