If D = 2 - 9n² and C = n +3 +4n^2?, find an expression that equals 3D - C in standard form.
Need help ASAP please

idk i would have to be there to under stand it

step-by-step explanation:

idk i would have to be there to under stand it

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

there still no table