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3x2+10=12
x = 1 and x = 5
x = −1 and x = −5
x = −9 and x = 3
No Solution
 one year ago
 one year ago
3x2+10=12 x = 1 and x = 5 x = −1 and x = −5 x = −9 and x = 3 No Solution
 one year ago
 one year ago

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R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
@AravindG HELP ME PLEASE STEP BY STEP
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
\[3x2=2\] now we square this.. the only way to get rid of the absoute sign is to square it
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
or make two equations out of it.
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
ok wait spuare the hole thing
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
yes see the above simplified orm
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
\[\left[3x2\right]^2=2^2\]
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
ok wat about the + 10
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
I subtracted it from the two sides
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
notice that the right side became 1210=2
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
where did u get the 12 frm
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
where did u get the 12 from
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
\[3x2+10=12\qquad\text{....given}\\ \qquad\qquad10\quad10 \]
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
ok srry im just learning this ok and then gives u this [−3x−2]^2=2^2
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
that is ok. well, this first gives \[3x2=2\] so, we the square it like you just wrote above
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
\[(3)^2(x2)^2=(2^2)\] notice that the absolute sign has disappeared
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
or to avoid squaring, you can remove the abolute sign in two ways...... \[3x2=2\impliesx2={3\over2}\]
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
how did u get 3/2
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
my bad... \[\Large{x2=\color{red}{}{2\over3}}\]
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
ooh its ok but how did u get that
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
divide the two sides by "3"
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
\[{3x2\over3}={2\over3}\]
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
this gives the above form.. now, by definition of ABSOLUTE value, can it ever become negative?
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
HEY STOP STOP STOP I WROTE THE PROBLEM DWN WRONG SRRY THIS IS THE PROBLEM −32x + 6 = −12
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
ok... you mean no "10" in there?
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
this is so much different than what you first asked for
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
ok.. proceeding similarly, get the absolute quantity on its own...
 one year ago

R00nnYBraiNsbiGBest ResponseYou've already chosen the best response.0
ik b/c its 2 differnt problems in one
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
\[\Large{32x6=12\\\text{divide both sides by 3}\\ 2x6=4\\\text{to get rid of absolute sign, we get two possible answers}\\\;\\ 2x6=4\qquad{\rm AND}\qquad2x6=4\\ 2x=4+6\qquad\qquad\qquad2x=4+6\\ 2x=10\qquad\qquad\qquad\quad2x=2\\ \boxed{x=5}\qquad\qquad\qquad\quad\boxed{x=1}} \]
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
check, plug in "x=" those numbers in the given problem on the left side. That should give you the right side.
 one year ago

electrokidBest ResponseYou've already chosen the best response.1
did you understand?
 one year ago
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