check whether (x+5) and (x+6) are the factor of x^2+11x+30 (by factor theorem)
Answers
Answer:
1) (x+5) 2) (x+6)
if f(x)=x^2+11x+30 if f(x)=x^2+11x+30
divisor is (x+5) divisor is (x+6)
reminder is f(‐5) reminder is f(‐6)
f(‐5)= (‐5)^2+11(-5)+30 f(‐6)=(‐6)^2+11(‐6)+30
=(25)+(‐55)+30 =36+(‐66)+30
=25‐55+30 =36‐66+30
=55‐55 =66‐66
=0 =0
yes , these two factors (x+5) , (x+6) of x^2+11x+30
Answer:
Yes, (x+5) & (x+6) are the factors of x^2 + 11x + 30.
Step-by-step explanation:
We have to find:-
(x+5) is a factor of x^2 + 11x + 30.
(x+5) = (x+ 5) = 0
=> x = -5
=Let p(x) = x^2 + 11x + 30.
= (-5)^2 + 11(-5) + 30
= 25 -55 + 30
= -30 + 30
= 0
Therefore, (x+5) is a factor of x^2 + 11x + 30.
We have to find:-
(x+6) is a factor of x^2 + 11x + 30.
(x+6) = 0
=> x = -6
= (-6)^2 + 11(-6) + 30
= 36 - 66 + 30
= -30 + 30
= 0
Therefore, (x+6) is a factor of x^2 + 11x + 30.
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