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Hi! Can someone please check my work real quick? I’m not sure what I’m doing wrong. I’m trying fo find the remainder using synthetic division.

Hi! Can someone please check my work real quick? I’m not sure what I’m doing wrong-example-1
User MrCroft
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1 Answer

5 votes

Given:

The polynomial is given as,


\begin{gathered} p(x)=2x^3+4x^2-5 \\ g(x)=x+3 \end{gathered}

The objective is to divide the polynomial by synthetic division.

Step-by-step explanation:

The general equation of a polynomial with degree 3 is,


f(x)=ax^3+bx^2+cx+d

So, consider the given polynomial as,


p(x)=2x^3+4x^2+0x-5

The divisor can be converted as,


\begin{gathered} x+3=0 \\ x=-3 \end{gathered}

To find synthetic division:

Now, the synthetic division can be evaluated as,

Hence, the remainder of the division is -23.

Hi! Can someone please check my work real quick? I’m not sure what I’m doing wrong-example-1
User Damian SIlvera
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