how do you solve this?? o_0?
the cube root of 5x+7 +3=1

Question

how do you solve this?? o_0?
the cube root of 5x+7  +3=1

anonymous · Answer

|dw:1334879272419:dw|

anonymous · Answer

subtract 3 from both sides and then cube it

anonymous · Answer

|dw:1334879375424:dw|

anonymous · Answer

yup!

anonymous · Answer

what do u do to the -3+1??

anonymous · Answer

that would be -2
(-2)^3=-8

anonymous · Answer

i mean to the -2?

anonymous · Answer

cube it

anonymous · Answer

thanks =D

anonymous · Answer

:) caN u show me the exact steps?? i got -3 in the book

anonymous · Answer

yup =D

turingtest · Answer

1)subtract 3 from both sides
now what do you have?

turingtest · Answer

@soccerdoggie6 please do not give the complete answer, the goal is to get them to figure it out themselves

turingtest · Answer

otherwise they just copy the work...

turingtest · Answer

so we need to make sure they are trying :)

turingtest · Answer

so continue to engage the student and you will earn more points @soccerdoggie6

anonymous · Answer

well turing test did you see the work above that thats what i was doing and the points dont matter

anonymous · Answer

yea thanks i dont see any more im stuck :(

turingtest · Answer

well, by the code of conduct you are not supposed to just print the entire answer, you are suposed to teach, so if you do that I will have to dock you points :(

turingtest · Answer

@cos00155079 try each step individually
1)subtract 3 from each side
please write what you have after you do that

anonymous · Answer

i showed the work if the person looking at the work doesnt want to learn thats their own problem. and i didnt give the answer right away. go ahead and subtract points what do i care

anonymous · Answer

ok ok stop fighting just help me please i have 5x+7=-2??? do u subtract the 7?

turingtest · Answer

no, you cube it as soccerdoggie said
do you know how to cube -2 ?
i.e. what is (-2)^3 ?

anonymous · Answer

8

turingtest · Answer

close, but actually it's negative
(-2)(-2)(-2)=4(-2)=-8
remember negative times negative is positive, and positive times negative is negative

turingtest · Answer

so what is the expression now?

turingtest · Answer

...the whole equation I mean

anonymous · Answer

sorry my internet failed...i have 5x+7=-8

turingtest · Answer

excellent, now subtract 7 from each side
what do you have next?

anonymous · Answer

i solved it...  5x=-15

anonymous · Answer

then i divided by 5 and got the answer =-3

turingtest · Answer

very nice :)