Question

Find the polynomial function with roots 1, 7, and -3 of multiplicity 2.

Answer 1

isn't it simply

y = a(x - 1)(x + 7)(x + 3)^2

Answer 2

I don't know. This is my first time ever having to do math like this.

Answer 3

ok... so roots are where the curve cuts the x axis

if a root is x = 3 then in a factored polynomial it is written ( x -3)

this may help to explain the opposite signs

multiplicity of 2 means the root is repeated twice

(x + 3)(x+3) = (x + 3)^2

Answer 4

Okay I understand.