Question

etermine the three cubic roots of 8.give the answer in the form of a+bj.also give the main root in the exponential form

Answer 1

a^3-b^3 = (a-b)(a^2+ab+b^2)

Answer 2

Can you please do this sum I don't understand clearly

Answer 3

x^3=8

Answer 4

where a^3=x^3 and b^3 = 8
solve for a and b and plug into the first equation given,

Answer 5

I must write 8 in exponential form first or ?

Answer 6

well it wouldnt hurt

Answer 7

Ok,just do it in your way so that I can compare it with myn wanna see whre I made mistakes please its an assignment

Answer 8

a=?
b=?

Answer 9

a=2
b=3

Answer 10

ok so x^3=8 can also be written as x^3-8=0
and can be factored by using the equations i provided by substituting in the values you solved for

Answer 11

x^3=a^3
x=a
8=b^3
b=2