Pre-Cal help !!! The polynomial of degree 3, P(2), has a root of multiplicity 2 at x = 3 and a root of multiplicity 1 at
x= - 3. The y-intercept is y = 16.2.
Find a formula for P(x).

P(x)=

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

just keep asking questions until you have a better understanding.

step-by-step explanation:

its line 2 i just added the rest or else it wouldn't let me answer