x2-9=45 use square roots plz solve and show work!

Question

anonymous · Answer

x squared -9=45 use square roots

lilg132 · Answer

54 = x^2

square root 54 and you will have the answer for x

anonymous · Answer

what? can u explain how u got that!

lilg132 · Answer

x^2 - 9 = 45

bring the numbers to one side

x^2 = 45 + 9  (when you bring a number to the other side it changes to the opposite sign e.g. negative to positive)

x^2 = 54

to get x by it self you need to square root it, but remember whatever you do to one side you also do to the other side so you square root 54 as well and you have the answer for x

anonymous · Answer

i get it thanks !

lilg132 · Answer

what happened to clicking best answer :p

anonymous · Answer

hahah sry i was finishing anothwer problem on my sheet haha

lilg132 · Answer

;)

anonymous · Answer

ANOTHER*