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Bananas1234
 one year ago
Solve for x.
3x2 – 12 = 0
Bananas1234
 one year ago
Solve for x. 3x2 – 12 = 0

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hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.2first step is to get 3x^2 by itself so we do: 3x^212+12=0+12 3x^2=12 do you know the next step?

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.2no problem, ok so we take 3x^2=12 and divide both sides by 3 3x^2/3=12/3 x^2=4 now we find the square root of x sqrt(x^2)= sqrt(4) x=2

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.2do you get how i got x=2?

Bananas1234
 one year ago
Best ResponseYou've already chosen the best response.0i think so, you got the square root of 4?

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.2correct :) so when dividing 3x^2 by 3 you eliminate the constant (3) and are left with x^2 general rule is what you do to one side of the equation you also need to do to the other which is why i divided 12 by 3. once you divide 12/3 you are left with x^2=4 and by taking the square root we get x=2

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.2finding that x=2 is your last step
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