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anonymous
 one year ago
Write the product as a trinomial (x+2)(x+4)
A. X^2+8X+8
B. x^2+8X+6
C. x^2+6
D. X^2+6X+8
anonymous
 one year ago
Write the product as a trinomial (x+2)(x+4) A. X^2+8X+8 B. x^2+8X+6 C. x^2+6 D. X^2+6X+8

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I like to use the box method http://www.purplemath.com/index.htm

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444087405771:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444087426523:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444087444357:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ive never heard of box method

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444087465794:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1do you see how I got this far?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1ok now we fill out the boxes

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1we do that by multiplying the stuff on the outside example x times x = x^2 dw:1444087609845:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1x times 2 = 2x dw:1444087639360:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1do you see how I'm filling out the boxes?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes 4x in the bottom box on left?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1very good dw:1444087720298:dw and bottom right?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yes, good dw:1444087746191:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1now we add up all the 4 terms inside the boxes we combine any like terms if they exist, in this case, they do (4x+2x = 6x) so \[\Large x^2 + 2x+4x+8 = x^2 + 6x + 8\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1in the end, \[\Large (x+2)(x+4) = x^2 + 6x + 8\]

YoloShroom
 one year ago
Best ResponseYou've already chosen the best response.0Foil is also really nice.

YoloShroom
 one year ago
Best ResponseYou've already chosen the best response.0If you mean 2x times 4x it's 8x^2 ^_^

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0honest im just lost on that part so i dont know

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1@YoloShroom FOIL is good but it's restricted. You can only use it if you are multiplying 2 binomials. The box method allows you to multiply any two algebraic expressions (they don't have to be binomials)

YoloShroom
 one year ago
Best ResponseYou've already chosen the best response.0On this problem, or a part of the problem ? Because i can clarify using a different method from what Jim used

YoloShroom
 one year ago
Best ResponseYou've already chosen the best response.0True, It gets more difficult later on if you use foil, but i think it's easier to understand earlier on dont you?
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