anonymous
  • anonymous
Medal!! Hey, I need help with just one algebra problem. Anyone?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
KristenSkate
  • KristenSkate
i can try..
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
so what i've done so far is: -2=-2x to the second power. how do i simplify that to get x alone?

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anonymous
  • anonymous
i don't know how to undo the power
KristenSkate
  • KristenSkate
I'm sorry..:( i really wanna help but I'm only in 7th grade.. I'm sorry
Directrix
  • Directrix
|dw:1446685007962:dw|
Directrix
  • Directrix
@TwilightRain1 ^^^^
KristenSkate
  • KristenSkate
i know i count help you but can someone help me?
Directrix
  • Directrix
|dw:1446685173580:dw|
anonymous
  • anonymous
i'm supposed to substitute the -2 for y, not x
Directrix
  • Directrix
What is the product of -2 times -2 times -2? To undo the (-2)^2, recall that the power in this case means the product of two -2 s. Then, multiply that product by the beginning -2.
anonymous
  • anonymous
^ that would give me a value for y. i already have that. its -2. i need a value for x @Directrix
Directrix
  • Directrix
>>i'm supposed to substitute the -2 for y, not x Not so. The point is (-2, y). In an ordered pair (x, y), x is first. In this problem x = -2 and you solve for y.
Directrix
  • Directrix
In the posted problem, y is not equal to -2.
anonymous
  • anonymous
OHHHHHH I GET IT! in the 2 problems before it, i was supposed to find the x value. i didn't read this one all the way through. thanksssss
Directrix
  • Directrix
Okay. Answer this and you will have the value of y. What is the product of -2 times -2 times -2 ?
anonymous
  • anonymous
16?
Directrix
  • Directrix
No. Try again.
anonymous
  • anonymous
-2 times -2=4 4 squared=16
anonymous
  • anonymous
order of operations....
Directrix
  • Directrix
Y = -2 * ( -2 ) ^2 y = -2 * ( 4) y = ?
anonymous
  • anonymous
or -8 .-. i'm confused
Directrix
  • Directrix
>-2 times -2=4 The 4 is not squared. It is multiplied by -2.
anonymous
  • anonymous
i already multiplied it by -2 though
Directrix
  • Directrix
This what we are doing. (See drawing.) On this order of operations you are doing, recall that operations within parentheses are done first before any of that left to right business. |dw:1446685853469:dw|
Directrix
  • Directrix
-8 Yes.
Directrix
  • Directrix
y = - 8. Yes.
anonymous
  • anonymous
alright, thanks :)

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