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Select one of the factors of 2x^2 + 16x – 18
x + 9
x + 1
x – 2
x – 8
 one year ago
 one year ago
Select one of the factors of 2x^2 + 16x – 18 x + 9 x + 1 x – 2 x – 8
 one year ago
 one year ago

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sauravshakyaBest ResponseYou've already chosen the best response.1
U know Factor Theorem?
 one year ago

sauravshakyaBest ResponseYou've already chosen the best response.1
If a polynomial f(x) is divided by (xa) then (xa) is a factor of f(x) if f(a)=0
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
so as per factor therom you get x+1.
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
right @sauravshakya
 one year ago

keky123321Best ResponseYou've already chosen the best response.0
I don't see how the factor theorem can help with this question (x^2 + 7x – 44) though?
 one year ago

sauravshakyaBest ResponseYou've already chosen the best response.1
Did u get for 2x^2 + 16x – 18
 one year ago

keky123321Best ResponseYou've already chosen the best response.0
I got it but i'm not sure exactly how you worked it out i tried and got stuck
 one year ago

sauravshakyaBest ResponseYou've already chosen the best response.1
f(x)=2x^2+16x18 Now, U need to try for every options for which u will get f(a)=0 when it is divided by (xa)
 one year ago

sauravshakyaBest ResponseYou've already chosen the best response.1
In this case, When f(x) is divided by (x+9), f(9)=2*(9)^2+16*(9)18=0
 one year ago

sauravshakyaBest ResponseYou've already chosen the best response.1
So, one of the factor of f(x) is (x+9)
 one year ago

keky123321Best ResponseYou've already chosen the best response.0
OK that makes sense.
 one year ago

sauravshakyaBest ResponseYou've already chosen the best response.1
Now, can u do these type of problems?
 one year ago

keky123321Best ResponseYou've already chosen the best response.0
I think so thank you.
 one year ago
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