zarkam21
  • zarkam21
Help pleasee
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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zarkam21
  • zarkam21
1 Attachment
sloppycanada
  • sloppycanada
Simplify. (x+3)^2
zarkam21
  • zarkam21
x^2+6?

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zarkam21
  • zarkam21
or 2x^2+6
sloppycanada
  • sloppycanada
You are squaring something 3^2 = ?
zarkam21
  • zarkam21
9
zarkam21
  • zarkam21
so 3^2=9
sloppycanada
  • sloppycanada
YUP!!!!! So your equation goes something along the lines of x^2 +/- x +/- # = 0 Fill in the blanks.
anonymous
  • anonymous
no its not
zarkam21
  • zarkam21
x^2-4x+9=0 ?
anonymous
  • anonymous
Simplify (x+3)2 + 4x Evaluate : (x+3)2 = x2+6x+9 Factoring x2+10x+9 (x+9) • (x+1) (x + 9) • (x + 1) = 0 Solve (x+9)•(x+1) = 0 Solve : x+9 = 0 Subtract 9 from both sides of the equation : x = -9 Solve : x+1 = 0 Subtract 1 from both sides of the equation : x = -1
sloppycanada
  • sloppycanada
No. you're not moving anything across an equal sign. so there's no need to change the postive and negative. x^2 + 4x + 9
sloppycanada
  • sloppycanada
@Albany_Goon The question isn't asking us to find "x". It's asking us to rearrange the equation.
anonymous
  • anonymous
ok so then its 0
anonymous
  • anonymous
because she has to write the cubic polynomial on the left hand side in standard form rite?
zarkam21
  • zarkam21
x^2-4x+9=0 ? is this correct?
sloppycanada
  • sloppycanada
@zarkam21 No, not quite. you seem to have the -4x wrong. It should be \[x^2+4x+9 = 0\]
zarkam21
  • zarkam21
Thanks @sloppycanada

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