1.

Howdy!The polynomials f(x) and g(x) are defined above. Which of the following polynomials is divisible by ?​

Answer»

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f(x)=2x^3+6x^2+<klux>4X</klux>

g(x)=x^2+3x+2

The polynomials f(x) and g(x) are defined above.

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the following polynomials is divisible by 2x+3

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option a)

=> h(x)=f(x)+g(x)= 2x^3+6x^2+4x+x^2+3x+2

Now , divide

2x^3+7x^2+7x+2 ÷ 2x+3

We get ,

REMINDER : 1/2

1/2 ≠ 0

So , this is not the ANSWER

Option B)

=> p(x)=f(x)+3g(x) = 2x^3+6x^2+ 4x +3(x^2+3x+2)

= 2x^3+6x^2+4x+3x^2+9x+6

= 2x^3+9x^2+13x+6 ÷ 2x+3

We get ,

Reminder : 0

∴ p(x) =f(x)+3g(x) is satisfying

So ,

Answer is Option b



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