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burhan101
 one year ago
x intercept for this function
burhan101
 one year ago
x intercept for this function

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burhan101
 one year ago
Best ResponseYou've already chosen the best response.0\[\huge y=x^39x^2+15x+4\]

burhan101
 one year ago
Best ResponseYou've already chosen the best response.0this is unfactorable?

SmoothMath
 one year ago
Best ResponseYou've already chosen the best response.0Any particular method they want you to use? Do they specify factoring?

burhan101
 one year ago
Best ResponseYou've already chosen the best response.0No but isnt that the only way?

SmoothMath
 one year ago
Best ResponseYou've already chosen the best response.0Graphing is the easiest.

SmoothMath
 one year ago
Best ResponseYou've already chosen the best response.0Graph that bad boy. Look for where it crosses the x axis. Doneso.

burhan101
 one year ago
Best ResponseYou've already chosen the best response.0no i have to use an algebraic method

burhan101
 one year ago
Best ResponseYou've already chosen the best response.0because like say on an exam, i cant graph that

Mertsj
 one year ago
Best ResponseYou've already chosen the best response.0Possible rational roots are :

SmoothMath
 one year ago
Best ResponseYou've already chosen the best response.0Okay then your best best is to use the rational root theorem to list possible rational roots. Then check each one to see if it is a valid root.

Mertsj
 one year ago
Best ResponseYou've already chosen the best response.0Use synthetic division to see if any of those are actual roots.

SmoothMath
 one year ago
Best ResponseYou've already chosen the best response.0Mertsj is correct. The way he got those possible roots is: A: Make a list of factors for the last number (In this case, it's 4) B: Make a list of factors for the first coefficient (In this case, it's 1) Possible rational roots must be of the form \(\huge \frac{\text{things in the first list}}{\text{things in the second list}}\)

Mertsj
 one year ago
Best ResponseYou've already chosen the best response.0So the best approach would be to find where y changes sign. Then you would know there is a root between those two values and you could hone in on it by trial and error. Of if you know calculus, you could use the derivative. What class is this for?

oldrin.bataku
 one year ago
Best ResponseYou've already chosen the best response.0they want you to bruteforce using newton's more than likely
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