Question

can anyone tell how to solve this cubic polynomial

Answer 1

\[8r{3}-8r^2+1\]

Answer 2

i have got one root as 1/2 how to slove for others

Answer 3

*solve pls fast i am solving GP questions

Answer 4

so other one will be -1/2

Answer 5

Can you do polynomial division?
Try to divide f(x) by (x-1/2) and solve the resulting quadratic (with complex roots)

Answer 6

y

Answer 7

What did you get for the quadratic? @kanwal32

Answer 8

8r^2+4r-2

Answer 9

any shortcuts

Answer 10

i was asking for shortcuts

Answer 11

I get \(8r^2-4r-2\). Would you like to recheck yours?

Answer 12

yes u r right

Answer 13

i typed wrong

Answer 14

lol

Answer 15

So the quadratic formula should get you the two other roots.

Answer 16

Sorry, the two other roots are not complex. Mea coupa.