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kenneyfamily
Group Title
3g^2  12g =  4
which number will complete the square?
a. 12
b. 4
c. 4
d. 36
 2 years ago
 2 years ago
kenneyfamily Group Title
3g^2  12g =  4 which number will complete the square? a. 12 b. 4 c. 4 d. 36
 2 years ago
 2 years ago

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CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
if you factor out the 3 on the left, you'll get \(\large 3(g^24g)=4\) Then to complete the square, add the square of half the coefficient of g.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Then, consider what would have to be added to the right side to keep both sides equal.
 2 years ago

kenneyfamily Group TitleBest ResponseYou've already chosen the best response.0
@CliffSedge
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Right, adding 4 inside the parentheses on the left yields \(\large 3(g^24g+4)=4 + ?\)
 2 years ago

kenneyfamily Group TitleBest ResponseYou've already chosen the best response.0
so 4 completes the square then?
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
What happens when you distribute that 3 back into those parentheses on the left?
 2 years ago

kenneyfamily Group TitleBest ResponseYou've already chosen the best response.0
3g^212g+12
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Right, so you actually added 12 to both sides to complete the square. \(\large 3g^2−12g+12)=−4+12\). See?
 2 years ago

kenneyfamily Group TitleBest ResponseYou've already chosen the best response.0
oh got it thanks!
 2 years ago
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