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:
i think 3/5 but not 100%
Step-by-step explanation:
sorry if im wrong
Answer: Answer is 12.
Step-by-step explanation:
6 - (-6)
6 + 6= 12
Keep, change, change.
Keep 6
Subtraction sign to addition.
Negative 6 becomes positive.
Answer:
Ok
Step-by-step explanation: