SOLUTION: I need help with these problems. 4.a- 9*8under the radical sign - 72 under the radical sign + 98 under the radical sign. Symplify by collecting like radical terms. Multiply- ((

Algebra ->  Square-cubic-other-roots -> SOLUTION: I need help with these problems. 4.a- 9*8under the radical sign - 72 under the radical sign + 98 under the radical sign. Symplify by collecting like radical terms. Multiply- ((      Log On


   

Question 63417: I need help with these problems.
4.a- 9*8under the radical sign - 72 under the radical sign + 98 under the radical sign. Symplify by collecting like radical terms.
Multiply- ((5+7))(2(5)-3(7)) #'s inside double paranthasis = #'s inside radical sign.
Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
9%2Asqrt%288%29-sqrt%2872%29%2Bsqrt%2898%29
9%2Asqrt%284%2A2%29-sqrt%2836%2A2%29%2Bsqrt%2849%2A2%29
Using the idea sqrt%284%2A2%29=sqrt%284%29%2Asqrt%282%29=2%2Asqrt%282%29 this can now be simplified
9%2A2%2Asqrt%282%29-6%2Asqrt%282%29%2B7%2Asqrt%282%29
18%2Asqrt%282%29-6%2Asqrt%282%29%2B7%2Asqrt%282%29
19%2Asqrt%282%29