Complete the square for x and y.
7x^2 + 3y^2 - 28x - 12y = -19
7x^2 - 28x + 3y^2 - 12y = -19
7(x^2 - 4x) + 3(y^2 - 4y) = -19
7(x^2 - 4x + 4) + 3(y^2 - 4y + 4) = -19 + 28 + 12
7(x - 2)^2 + 3(y - 2)^2 = 21
Answer:
144
Step-by-step explanation:
PEMDAS
(12)^2
144
Answer:
its d.
Step-by-step explanation:
the other guy is wrong
Answer:
20x^4 - 13x^3 + 8x^2- x + 6
Step-by-step explanation:
box method :)