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anonymous
 one year ago
7x^2=448
taking the square root
and
completing the square
please show steps
anonymous
 one year ago
7x^2=448 taking the square root and completing the square please show steps

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you do not have to complete the square for this one divide both sides by \(7\) then take the square root of both sides don't forget the \(\pm\)

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~448\div7=?\]

geerky42
 one year ago
Best ResponseYou've already chosen the best response.0Yep, so now you have \(x^2 = 64\) Your next step is to take square root of both sides.

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~\sqrt{x^2}=\sqrt{64}\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4good and the square root of X^2 ?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4ok so whats the answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so the equation for it would be like the steps

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Nope remeber the = sign it remains there! \[\huge~\rm~x=\pm8\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what would be the steps

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4We just did it ... we need to divide both sides by 7 that way we can isolate the x \[\huge~\rm~\frac{ 7x^2=448 }{ 7 } \] We were left with \[\huge~\rm~x^2=64\] we need to solve for x so we need to square root both of those \[\huge~\rm~\sqrt{x^2}=\sqrt{64}\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4And when we did this we ended up with... \[\huge~\rm~x=\pm8\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes i think so if i turned these steps it would be the correct formulas and stuff?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Can you please rephrase that ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i'm suppose to show my work when i turn it in so if i turn these steps in would it be the correct formula?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help me with one more?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4._. this is correct but i expect u to be able to do the next one by yourself if it is like this...i can look over the work :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok well the next one is a little different x^210x+22=2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do i do the same thing?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4We need to get it into standered for first \[\huge~\rm~ax^2+bx+c=0\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0fill it in with the number from the equation?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4x^210x+22=2 we add the 2 to the  \[\huge~\rm~222=?\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4my mistake sorry it would be just 24

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~x^210x+24=0\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4what numbers multiply to make 24 but adds to make 10

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4good 4 and 6 then (x6) (x4) set up 2 diffrent equations x6=0 <solve for x x4=0 <solve for x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0o so the steps are ?
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