Find the value of √162+√108/√72+√48
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Answer:
Step-by-step explanation:
by doing prime factorization you can get the factors easily
root162 =
root( 2 × 3 × 3 × 3 × 3 ) = 9root2
root108 =
root( 2 × 2 × 3 × 3 × 3) = 6root3
root72 =
root(2 × 2 × 2 × 3 × 3) = 6root2
root48 =
root(2 × 2 × 2 × 3 × 2 ) = 4root3
( root162 + root108)/(root72 + root48)
= ( 9root2 + 6root3)/(6rot2 + 4root3)
= 3( 3root2 + 2root3)/2(3root2 + 2root3)
= 3/2
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