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syhna
 2 years ago
Best ResponseYou've already chosen the best response.0use the quadratic formula

tmts98
 2 years ago
Best ResponseYou've already chosen the best response.0I was looking over my notes for my midterm in Algebra II, and I think I copied down this wrong. It says if my original equation is x²+14x+40 my factored equation would be 1(x+10)(x+4), I foiled this out because it looked wrong and I got positive x²+14+40. What do I have wrong?

tmts98
 2 years ago
Best ResponseYou've already chosen the best response.0*this down by the way...

syhna
 2 years ago
Best ResponseYou've already chosen the best response.0(x^2  14  40) now factor x^2  14  40 using either the quadratic formula of completing the square

tmts98
 2 years ago
Best ResponseYou've already chosen the best response.0Well, I used the quadratic formula and I got: \[x=7\pm3\sqrt{2}\] Is this right?

funinabox
 2 years ago
Best ResponseYou've already chosen the best response.0to check if your answer is correct, plug the number(s) back into your original expression. if the answer you get is 0, then you have found the correct roots

funinabox
 2 years ago
Best ResponseYou've already chosen the best response.0because the whole point of factoring is to find what x values make f(x) = 0

tmts98
 2 years ago
Best ResponseYou've already chosen the best response.0Well, now I am just more confused then when I started,.
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