If both (x + 2) and (2x + 1) are factors of ax^2 + 2x +b, then the val

1.	If both (x + 2) and (2x + 1) are factors of ax^2 + 2x +b, then the value of a - b isa. -1b. 2c. 1 d. 0
Answer» ANSWER: d.0 Step-by-step explanation: (x+2) (2x+1) x=-2 , x=-1/2 put the VALUE in p(x) 4a+b=4....(1) a+4b=4...(2) (1)and(2) we get a=4/5 and b=4/5 (a-b)=4/5-4/5=0

If both (x + 2) and (2x + 1) are factors of ax^2 + 2x +b, then the value of a - b isa. -1b. 2c. 1 d. 0

Answer»

ANSWER:

d.0

Step-by-step explanation:

(x+2) (2x+1)

x=-2 , x=-1/2

put the VALUE in p(x)

4a+b=4....(1)

a+4b=4...(2)

(1)and(2) we get

a=4/5 and b=4/5

(a-b)=4/5-4/5=0

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If both (x + 2) and (2x + 1) are factors of ax^2 + 2x +b, then the value of a - b isa. -1b. 2c. 1 d. 0​

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If both (x + 2) and (2x + 1) are factors of ax^2 + 2x +b, then the value of a - b isa. -1b. 2c. 1 d. 0