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Brooke2013
Group Title
Determine which binomial is a factor of 2x^3 + 14x^2  24x + 20
A.) x + 5
B.) x + 20
C.) x  24
D.) x  5
 2 years ago
 2 years ago
Brooke2013 Group Title
Determine which binomial is a factor of 2x^3 + 14x^2  24x + 20 A.) x + 5 B.) x + 20 C.) x  24 D.) x  5
 2 years ago
 2 years ago

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irkiz Group TitleBest ResponseYou've already chosen the best response.0
its mcq so its easy to solve X is definitely wrong coz X is not the same as x
 2 years ago

irkiz Group TitleBest ResponseYou've already chosen the best response.0
if (x+5) is a factor, then x = 5 would make the equation 0
 2 years ago

irkiz Group TitleBest ResponseYou've already chosen the best response.0
if (x5) is a factor, then x= 5 makes the equation 0
 2 years ago

irkiz Group TitleBest ResponseYou've already chosen the best response.0
substitute x = 5 and x = 5 see which one makes it 0
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
Neither of them do.
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
There all 4 little x's I just didn't mean to make the two middle one's capital x's.
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
So I'll try the other two to see which one is right
 2 years ago

irkiz Group TitleBest ResponseYou've already chosen the best response.0
i managed to find the answer by substituting a value
 2 years ago

irkiz Group TitleBest ResponseYou've already chosen the best response.0
try x = 5 again
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
ok, I will
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
When I put the equation like this 2(5)^3 + 14(5)^2  24(5) + 20 I get 100 + 1900  120 + 20 and when you add it up it equals 4900
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
Is the answer x = 5 ?
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
yes, x=5 is the root , so x5 is the factor.
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
So the answer is D ? x  5
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
I wish I understood how you got that bc I tried to plugg 5 into where the x's are and I got the answer 4900 not 0
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
5^3 = 125 125*2 = 250
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
5^2 = 25 25*14=350
 2 years ago

Brooke2013 Group TitleBest ResponseYou've already chosen the best response.0
Ok, thanks :)
 2 years ago
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