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BMI229
(x – 3)2 = 2
distribute the 2 so it would be|dw:1366645202678:dw|
or are you saying its ^2 not 2
|dw:1366645220762:dw| ^2 <-
ahh, well that just means that you are doing (x-3)(x-3)=2
I got this x = 3 ± sqrt 2
how did you get that? im not knocking whether it is right or wrong i just wanna know how you did it
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?
how would you go about your new problem?
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
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
okay, how would you solve it?
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.
haha you get this stuff :) why are you asking for help
just some were difficult thats all
ahh well you seem to me you are gonna get an A :D