The coefficients of x² and y² must be equal and positive: A = B.
Example: x²+y²+8x-2y-8=0
REMINDER:
Prepare your pen and a piece of paper for writing your answers.
Here's the answer
Given:
Simplify the equation:
STEP 1: Arrange the terms with the same variable together, then move the constant to the right side of the equation and change its sign.
STEP 2: Divide the numerical coefficient of x by 2, then square the result. Do the same for the numerical coefficient of y.
STEP 3: Transform the perfect square trinomials of the x and y coefficients into binomials.
Then, add both the square of the constant of x and y to the right side of the equation.
STEP 4: After getting its binomial, get the square root of the radius.