Question 809583
Write the equation of the circle in standard form : 
a) x^2 - 10x _ y^2 - 8y = -32 
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I'll assume the _ should be a +
x^2 - 10x + y^2 - 8y = -32 
Complete the square for x and y
{{{(x^2-10x+25) + (y^2-8y+16) = -32 + 25 + 16 = 9}}}
{{{(x-5)^2 + (y+4)^2 = 3^2}}}
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b) x^2 - 2x + y^2 - 4y - 3 = 0 
Do it the same way.