Question

divide 2 + 7 x + 7 x square + 2 x cube by 2 X + 1​

Answer 1

Answer:

Let

f(x)=2x

3

–7x

2

+2x

And p must be added to f(x)

∴f

′

(x)=2x

3

–7x

2

+2x+p

Dividing f(x) by 2x−3 by long division method, we get

2x

3

–7x

2

+2x+p=(2x−3)(x

2

−2x−2)+(p−6)

Hence, remainder is p–6

⇒p−6=−2[given, remainder =−2]

⇒p=−2+6

⇒p=4

Therefore, 4 is to be added

Step-by-step explanation:

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