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quadratic equation by completing the square. check both roots . equation below
 one year ago
 one year ago
quadratic equation by completing the square. check both roots . equation below
 one year ago
 one year ago

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countonme123Best ResponseYou've already chosen the best response.1
please explain each step
 one year ago

NotTimBest ResponseYou've already chosen the best response.0
well, first subtract 7 from both sides.
 one year ago

satellite73Best ResponseYou've already chosen the best response.3
take half of 6 get 3 write \[(x3)^2=7+...\] then think "3 squared is 9" write \[(x3)^2=7+9=16\] take the root, don't forget the \(\pm\) get \[x3=\pm\sqrt{16}\] \[x3=\pm4\]
 one year ago

satellite73Best ResponseYou've already chosen the best response.3
then solve \[x3=4\iff x=7\] or \[x3=4\iff x=1\]
 one year ago

satellite73Best ResponseYou've already chosen the best response.3
all the steps are there
 one year ago

countonme123Best ResponseYou've already chosen the best response.1
wow i think i get it let me try it on paper
 one year ago

countonme123Best ResponseYou've already chosen the best response.1
hmm thats not right
 one year ago

countonme123Best ResponseYou've already chosen the best response.1
wait my mistake you got half right but there is supposed to be one more answer
 one year ago

NotTimBest ResponseYou've already chosen the best response.0
no...satellite gave enough I think. There's 2 values for x in his answer. I dont think there's a third one is a trinomial like this.
 one year ago

countonme123Best ResponseYou've already chosen the best response.1
you are right my bad again i didnt see or
 one year ago
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