What is the difference of the polynomials? (5x3 + 4x2) – (6x2 – 2x – 9) –x3 + 6x2 + 9 –x3 + 2x2 – 9 5x3 – 2x2 – 2x – 9 5x3 – 2x2 + 2x + 9

5x^3 - 2x^2 + 2x + 9.

Step-by-step explanation:

(5x^3 + 4x^2) – (6x^2 – 2x – 9)

Remove the parentheses . Note the negative is distributed over the second parentheses:

=  5x^3 + 4x^2 – 6x^2 + 2x + 9

=  5x^3 - 2x^2 + 2x + 9.

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)