Question

how to "complete the square"?

Answer 1

whats your Q

Answer 2

x^2+9x=-14

Answer 3

to complete the square we need to find

(x + a)^2 = -14 + a^2

To do this we merely take half the x-coefficient and square it

in this case (1/2 of 9) squared, which is 81/4

so we have

x^2 + 9x + 81/4 = -14 + 81/4

do you follow so far?