Question

find the real solution of x^6+7x^3-8 help

Answer 1

x^6+8x^3-x^3-8
X^3(x^3+8)-1(x^3+8)
(x^3+8)(x^3-1)

Answer 2

if this is 0
then x^3=-8 or x^3=1
therefore x=-2 or x-1

Answer 3

get it?

Answer 4

i don't ghe first pr how did u get +8x^3and all that?

Answer 5

see in the first step i split the middle term so as to get suitable factors...
you got that step?

Answer 6

see the last term -8=(8)(-1) so I wrote 7 as the sum of the factors 7=8-1

Answer 7

oh i get it :) thank u so much !

Answer 8

You are welcome... If you have any more query on it just post here

Answer 9

And yes give me my medal lol

Answer 10

like this.. you see the option of a good answer just click on it

Answer 11

(if you liked it that is hehe)

Answer 12

hahahah sorry i was writing down the answe hahahah