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What are the solutions of x2 + 5x − 24 = 0? Show all work for full credit.
 one year ago
 one year ago
What are the solutions of x2 + 5x − 24 = 0? Show all work for full credit.
 one year ago
 one year ago

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muhammad9t5Best ResponseYou've already chosen the best response.0
do it by factorizing...
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
hint : split the middle term as 8x3x
 one year ago

muhammad9t5Best ResponseYou've already chosen the best response.0
break 5x in two terms.
 one year ago

SolmyrBest ResponseYou've already chosen the best response.0
would it be −b±/b^2  4ac  2a
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
thats using Quadratic formula...are u asked to use that ? if not factorizing will be better approach
 one year ago

SolmyrBest ResponseYou've already chosen the best response.0
ya its asking for quadratic formula
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
Compare your quadratic equation with \(ax^2+bx+c=0\) find a,b,c then the two roots of x are: \(\huge{x=\frac{b \pm \sqrt{b^24ac}}{2a}}\)
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
so, first tell me what u get for a,b,c.
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
no, 'a' is the coefficient of x^2 here u have 1x^2 so a=.... ?
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
are u sure about the value of 'c' ?
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
correct, now just plug in the values of a,b,c in that quadratic formula
 one year ago

SolmyrBest ResponseYou've already chosen the best response.0
−b±/b^2  4ac  2a 5 +/5^2  4 * 1 * 24  2 5 +/ 25  96  2
 one year ago

SolmyrBest ResponseYou've already chosen the best response.0
5 /5^2  4 * 1 * 24  2 5 / 25  96  2
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
remember that c=24 so \(b^24ac = 254(1)(24) = 25+96=...?\)
 one year ago

SolmyrBest ResponseYou've already chosen the best response.0
i cant believe i keep messing that up
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
everything else was correct.
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
yes, and \(\sqrt{121}=..?\)
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
yes, and (511)/2 =... ?
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
thats correct, so 2 roots are 3 and 8.
 one year ago

SolmyrBest ResponseYou've already chosen the best response.0
ok thank u for all ur help
 one year ago
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