document.write( "Question 33471: 2(3x2+X+2) \n" ); document.write( "
Algebra.Com's Answer #19853 by mszlmb(115)\"\" \"About 
You can put this solution on YOUR website!
check 4 problems on my part\r
\n" ); document.write( "\n" ); document.write( "is this even ur equation?? \"2%283X%5E2%2BX%2B2%29\"
\n" ); document.write( "if its not then repost or sumthin cuz that's what im solving :oD
\n" ); document.write( "\"2%283X%5E2%2BX%2B2%29\" let's solve by factoring.
\n" ); document.write( "A=3, B=1, C=2. (because the linear formula is \"Ax%5E2%2BBx%2BC\")
\n" ); document.write( "yea, we R gonna ignore the 2 in front 4 now.
\n" ); document.write( "now we do A*C. 3*2 is 6. now we need find 2 numbers that multiply 2 6 and add to B, 1. simply enough, our numbers are -2 and 3. but we have a problem. -2 and 3 don't multiply to 6, they multiply to negative 6. we're going to do this:
\n" ); document.write( "\"2%283X%5E2%2BX%2B2%29\" is our equation. \"2%283X%5E2%2BX-2%2B4%29\" is the same thing, let's disregard the 4 for now. let's focus on \"3x%5E2%2BX-2\". it's the same as saying \"3x%5E2%2B3x-2x-2\", is it not (yea, it is).. ok so now we look for things we can factor. \"3x%5E2+and+3x\" have a similarity: 3x. So we're going to factor the 3x out. It thence becomes 3x(x+1). now we factor -2x-2. Take a wild guess.. YES! The common factor is -2! we factor -2x-2 to obtain -2(x+1).
\n" ); document.write( "ok so \"3X%5E2%2BX-2\" is the same as 3x(x+1)-2(x+1) . Now put the x+1's together and what's left? 3x-2. You have factored \"3x%5E2%2B3x-2x-2\" into
\n" ); document.write( "(3x-2)(x+1). Let's see the entire equation.
\n" ); document.write( "\"2%28%283x-2%29%28x%2B1%29%2B4%29\" how do we take that annoying +4 out of there? well it would be 8 outside the parenthises, wouldn't it? (because 2(4)=8).
\n" ); document.write( "our equation is upgraded to 2(3x-2)(x+1)+8.
\n" ); document.write( "Now we have a split; either your equation is f(x)=2(3x-2)(x+1)+8 , or 0=2(3x-2)(x+1)+8.
\n" ); document.write( "f(x)=2(3x-2)(x+1)+8:
\n" ); document.write( " There are an infinite amount of answers, I'm quite certain, because you are naming a function: an entire infinite graph.
\n" ); document.write( "0=2(3x-2)(x+1)+8
\n" ); document.write( " This is simpler, and has an answer. We begin with
\n" ); document.write( "0=2(3x-2)(x+1)+8
\n" ); document.write( "-8=2(3x-2)(x+1)
\n" ); document.write( "-4=(3x-2)(x+1)
\n" ); document.write( "0=(3x-2)(x+1)+4
\n" ); document.write( "this turns out yet another parabola:
\n" ); document.write( "\"graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C%283x-2%29%28x%2B1%29%2B4%29\"\r
\n" ); document.write( "\n" ); document.write( "I'm sorry if I'm not more help. If you find that I'm wrong please tell me so I can learn this. THNX!
\n" ); document.write( "ps I really recommend talking 2 ur teacher about this as it is hard to explain without pen and paper.
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