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anonymous
 one year ago
y = (x+3)(x5) uadratic equation
anonymous
 one year ago
y = (x+3)(x5) uadratic equation

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Have you heard of the FOIL method?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i really don't have the hang of it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, no problem. It's super simple! Give me a sec while i draw this out okay?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1432769861044:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You multiply all those out. Add everything together that has matching variables and that will be your quadratic equation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry my handwriting is awful. It's hard with a mouse and i have shaky hands.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Post your answer once you get it and i'll check to make sure it's correct okay?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Nope, not quite. Here let me show you further.\[x \times x + 3 \times x  5 \times x  3 \times 5\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0does that make more sense to what my drawing shows?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0to further elaborate on what agentc0re is saying, if you have (x+3)(x5), you take the x from (x+3), and distribute it to the x, and 5, from the second expression, which is where agentc0re got x*x+x*5. Then you use the 3, and do the same, which gives you 3*x+3*5. once you have the two halves, you combine them, so, x*x+x*5+3*x+3*5. Now you multiply. x*x is x^2, x*5 is 5x, 3*x is 3x, and 3*5 is 15. Now you put those together, giving you x^25x+3x15. Lastly, you combine like terms, giving you a final answer of x^22x15.
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