Question

Can someone explain this?
sqrt(x+3) + x +3 = sqrt(x+1)[1+sqrt(x+3)]

Answer 1

\[\sqrt{x+3} + x + 3 = \sqrt{x+1} (1+\sqrt{x+3})\]

Answer 2

This is an eqn - open the brackets and start raising in 2-nd degree

Answer 3

I'm just trying to figure out how they factored this

Answer 4

\[\sqrt{(.....) * (...)} =\sqrt{(.....)}\sqrt{(...)}\]

Answer 5

Only you made a small typo : it should be:\[\sqrt{x+3} + x + 3 = \sqrt{x+3}(1 + \sqrt{x+3})\]

Answer 6

ahhh, I did not make the typo, that is straight out of a textbook.

Answer 7

even so, how do you pull out an sqrt(x+3) from x?

Answer 8

See the rule of root multiplication that I posted for u above - the content "merges" and multiplies

Answer 9

start by dividing everything by \[\sqrt{x+3}\]

Answer 10

@Mikael, but we are not multiplying anything to begin with...?

Answer 11

\[x+3=\sqrt{(x+3)*(x+3)}=\sqrt{(x+3)}*\sqrt{(x+3)}\]

Answer 12

You do multiply - ON THE LEFT HAND SIDE !

Answer 13

Sorry RIGHT HAND SIDE

Answer 14

OPEN the parentheses - u have to multiply

Answer 15

@juantweaver how does x+3=sqrt((x+3)∗(x+3))

Answer 16

another example\[2=\sqrt{2*2}=\sqrt{2}*\sqrt{2}\]

Answer 17

Come ON\[\sqrt{A}*\sqrt{A} = \sqrt{A^2} = A\]

Answer 18

oohh k thanks

Answer 19

:}

Answer 20

close the question pl

Answer 21

koala vs. gator :P

Answer 22

No we live indifferent Eco-niches and therefore are smiling at each other :]]]

Answer 23

I am on top (of the forest) and gator is ... hmm, well you know...

Answer 24

Please close the question @baldymcgee6

Answer 25

Please close the question @baldymcgee6

Answer 26

sorry, battery died.

Answer 27

Thanks for "fan" meet u again but also u have to read beforehand u ask

Answer 28

Read what before I ask?