Question

the root of the equation x 3+8x-1=0 is between
a)0&1
b)1&2
c)2&3
d)3&4​

Answer 1

Answer:

a=3

b=8

c=-1

-b√4ca÷2a

-8√4×1×3÷2×3

-8√12÷6

-8+√12÷6. -8-√12÷6