Find all the zeros of the polynomial function p(x) x^4-4x^3 -5x^2+38x- 30

The zeros of the polynomial function are 1, -3, 3+i and 3-i.

Step-by-step explanation:

The given function is

We can find a zero of the given function by hit and trial method.

Substitute x=1 in the given function.

The value of function is 0 at x=1 it means (x-1) is a factor of given function.

Substitute x=-3 in the given function.

The value of function is 0 at x=-3 it means (x+3) is a factor of given function.

Divide the given function by , to get remaining factors.

So, the factor form of given function is

Quadratic formula: If a quadratic equation is , then

Using quadratic formula find the zeroes of .

Therefore the zeros of the polynomial function are 1, -3, 3+i and 3-i.

step-by-step explanation:

it's is b

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.