anonymous
  • anonymous
(x – 3)2 = 2
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
distribute the 2 so it would be|dw:1366645202678:dw|
anonymous
  • anonymous
or are you saying its ^2 not 2
anonymous
  • anonymous
|dw:1366645220762:dw| ^2 <-

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anonymous
  • anonymous
ahh, well that just means that you are doing (x-3)(x-3)=2
anonymous
  • anonymous
I got this x = 3 ± sqrt 2
anonymous
  • anonymous
:) or :(
anonymous
  • anonymous
how did you get that? im not knocking whether it is right or wrong i just wanna know how you did it
anonymous
  • anonymous
x2^-6x+9=2 x=3+-sqrt2
anonymous
  • anonymous
new problem now?
anonymous
  • anonymous
Sam’s plasma TV has a 14 in by 18 in screen with a plastic trim border. The total area of the TV and border is 480 in2. How wide is the trim around the TV?
anonymous
  • anonymous
good.
anonymous
  • anonymous
how would you go about your new problem?
anonymous
  • anonymous
w = width of border (14 + w)(18 + w) = 480 252 + 32w + w^2 = 480 w^2 + 32w - 228 = 0 ( w + 38)(w - 6) = 0 so w = -38 (impossible) or w = 6 6 in
anonymous
  • anonymous
there you go :)
anonymous
  • anonymous
Part 1: Solve the following equation using one of the methods listed below. Show all work. (4 points) Part 2: Using complete sentences, explain why you chose the method you used. (2 points) Equation: 0 = x2 + 6x + 3
anonymous
  • anonymous
okay, how would you solve it?
anonymous
  • anonymous
x²+6x+3=0 x² +6x +9 +3 =9 (Add the square of 1/2 the coefficient of x to both sides.) x²+6x +9 = 6 (Simplify) (x+3)²=6 (Write the trinomial as a perfect square. x+3 = ±√6 (Take the square root of both sides.) x=-3 ±√6 (Simplify) I choose completing the square because it requires less arithmetic than the other common method of using the quadratic formula. Graphing would not produce an accurate answer and since it cannot be factored into whole numbers, that method is not desirable.
anonymous
  • anonymous
haha you get this stuff :) why are you asking for help
anonymous
  • anonymous
just some were difficult thats all
anonymous
  • anonymous
ahh well you seem to me you are gonna get an A :D

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