Find x and the indicated angle measurement

let's bear in mind that, the sum of all interior angles in a polygon is

180(n - 2),  n = number of sides in the polygon.

now, this is a PENTAgon, it has 5 sides, thus n = 5, so the sum of all interior angles is then, 180( 5 - 2) => 180(3) => 540°.

now let's add them up then.

i can answer this question sweetie!

step-by-step explanation:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option