PLease show me step by step PLease im soo lost in Square roots
2007-08-27 18:07:31 · 8 answers · asked by Paul Aka-Twinkie 1 in Science & Mathematics ➔ Mathematics
2 + 3 sqrt of 2
2007-08-27 18:11:57 · answer #1 · answered by ferdie 2 · 0⤊ 0⤋
well first..inside the () the square root of 9 is 3..so you add that to the square root of 2 and get 3 root 2 then you multiply the square root of 2 * 3 root 2..which when multiplying square roots you just add whats inside the square whcih in this case is 2+2...so you have the 3 root 4..and the square root of 4 is 2..so now you have 3(2) which equals 6
2007-08-28 01:13:18 · answer #2 · answered by lucy8705 2 · 0⤊ 0⤋
Square root of 2=1.414213562. Square root of 9 is 3. 1.414213562 + 3= 5.414213562 or 5.41
2007-08-28 01:11:46 · answer #3 · answered by DM 2 · 0⤊ 0⤋
Sqrt of 2=1.414213562.
Sqrt of 9 is 3.
1.414213562 + 3= 5.414213562 or 5.41
2007-08-28 02:08:38 · answer #4 · answered by Avishay Zeta 2 · 0⤊ 0⤋
sqrt 2( sqrt 2 +sqrt 9)=
sqrt of 4 +sqrt of 18
2+3 sqrt of 2
2007-08-28 02:43:55 · answer #5 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
you need sqrt 2(sqrt(2) + 3)
let it be a + b sqrt(2)
square it
a^2+ 2b^2 + 2ab sqrt(2) = 2 sqrt(2) + 6
equate rational and irrational parts
a^2+2b^2 = 6
ab = 3
now you can solve for a and b
2007-08-28 01:19:04 · answer #6 · answered by Mein Hoon Na 7 · 0⤊ 0⤋
it will end up to be:
sqrt2(sqrt2 + 3)
distributing..
sqrt 2 becomes 2 and you multiply 3 by sqrt2
so the ans. will be
2+3sqrt2
2007-08-28 01:12:15 · answer #7 · answered by toffer 3 · 0⤊ 0⤋
(2)^1/2{(2)^1/2+(9)^1/2}
=2+3(2)^1/2
2007-08-28 01:17:09 · answer #8 · answered by Sumita T 3 · 0⤊ 0⤋