exam Maths Puzzle Numerical Ability

Find the center and radius by completing the square.
x^2+y^2+10x+7=0

Read Solution (Total 0)

exam Other Question

x+3
over
x squared -4

How would I factor that, or if I am not supposed to factor how am I suppposed to find the domain? sqrt(-3-5)sqrt2+(-4-2)sqrt2 this is supposed to add up to sqrt100 and then into 10 how is this problem done?