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Janu16
 one year ago
Which of the following values "completes the square," or creates a perfect square trinomial, for x2 + 10x + ___?
Janu16
 one year ago
Which of the following values "completes the square," or creates a perfect square trinomial, for x2 + 10x + ___?

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Janu16
 one year ago
Best ResponseYou've already chosen the best response.0so how do you figure out the third number

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2\(\large\color{black}{ \displaystyle (x+\color{red}{ a})^2=x^2+2\color{red}{ a}x+\color{red}{ a}^2 }\) do you understand this rule?

Janu16
 one year ago
Best ResponseYou've already chosen the best response.0yaa but is there a name for this stuff

Janu16
 one year ago
Best ResponseYou've already chosen the best response.0i actually take online class and they haven't teached the rules you are teaching me

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2Oh, then you are a little bit behind, I guess.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2I don't recall its name in particular, but I don't think that matters that much,.

Janu16
 one year ago
Best ResponseYou've already chosen the best response.0they have teached me y=a(xh)^2+h and ax^2+bx+c for this lessom

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2\(\large\color{black}{ \displaystyle (x+\color{red}{ a})^2= }\) \(\large\color{black}{ \displaystyle (x+\color{red}{ a})(x+\color{red}{ a})= }\) \(\large\color{black}{ \displaystyle x\cdot x+x\cdot\color{red}{ a}+x\cdot \color{red}{ a}+\color{red}{ a}\cdot\color{red}{ a}= }\) \(\large\color{black}{ \displaystyle x^2+x\color{red}{ a}+x \color{red}{ a}+\color{red}{ a}^2= }\) \(\large\color{black}{ \displaystyle x^2+2\color{red}{ a}x+\color{red}{ a}^2 }\) `` Is this process I did familiar to you?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2ok, so thus we know that: \(\large\color{black}{ \displaystyle (x+\color{red}{ a})^2=x^2+2\color{red}{ a}x+\color{red}{ a}^2 }\) Okay?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2and we want to get \(x^2+10x\) peace of the equation, to be a perfect square.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2\(\large\color{black}{ \displaystyle x^2+10x+{?} }\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2(you want to get your equation to be like: \(\large\color{black}{ \displaystyle (x+\color{red}{ a})^2=x^2+2\color{red}{ a}x+\color{red}{ a}^2 }\) )

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.210 is same as 2a, right?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2Compere these two: \(\large\color{black}{ \displaystyle x^2+10x+{?} }\) \(\large\color{blue}{ \displaystyle x^2+2ax+a^2 }\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2((the question mark is \(a^2\) ))

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2so if 10 is 2a, then \(a^2\) is going to be equal to what?

Janu16
 one year ago
Best ResponseYou've already chosen the best response.0soory hold on im lagging

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2Again, 2a in our case is what?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2so if 2a=10 then a\(^2\)=?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2ok, 2a=10 then a=?

Janu16
 one year ago
Best ResponseYou've already chosen the best response.0im really not sure about thiss

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.22a=10 divide by 2 on both sides, and you get that a=5

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2Yes, if 2 times a is 10. Then one a is 5.

Janu16
 one year ago
Best ResponseYou've already chosen the best response.0ohhok so divide so the last blank would be 5

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2(( a\(^2\) is same as \(a \times a\). )) So, if a is 5, then \(a \times a\) is \(5\times 5\). That will be equal to \(25\).

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2yes, and that is same thing as "5×5". And this is going to be equal to 25 as you know.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2So, now you have: \(\large\color{black}{ \displaystyle x^2+10x+{\underline{25}} }\) \(\large\color{blue}{ \displaystyle x^2+2ax+a^2 }\)

Janu16
 one year ago
Best ResponseYou've already chosen the best response.0ohok and what was tht formula you used? I just wanna write it down

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.2\(\LARGE\color{black}{ \displaystyle \color{blue}{x}^2+2\color{red}{a}\color{blue}{x}+\color{red}{a}^2=(\color{blue}{x}+\color{red}{a})^2 }\)
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