SOLUTION: Please I need help with please! 1. √65+√21= 2.square root of 2 + square root of 18 = 3. sqrt(50) - sqrt(2)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please I need help with please! 1. √65+√21= 2.square root of 2 + square root of 18 = 3. sqrt(50) - sqrt(2)      Log On


   

Question 212112: Please I need help with please!
1. √65+√21=
2.square root of 2 + square root of 18 =
3. sqrt(50) - sqrt(2)
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
1)sqrt%2865%29+%2B+sqrt%2821%29 since 65 is 5*13 and 21 is 3*7, you can't simplify this one without converting to estimates
2)sqrt%282%29+%2B+sqrt%2818%29
sqrt%282%29+%2B+sqrt%289%2A2%29
sqrt%282%29+%2B+sqrt%289%29%2Asqrt%282%29
sqrt%282%29+%2B+3sqrt%282%29
4%2Asqrt%282%29
3)sqrt%2850%29+-+sqrt%282%29
sqrt%2825%2A2%29+-+sqrt%282%29
sqrt%2825%29%2Asqrt%282%29+-+sqrt%282%29
5%2Asqrt%282%29+-+sqrt%282%29
4%2Asqrt%282%29