Math Problem Statement

Divide (-10x^2 + 4x^3 + 3) ÷ (x^2 - 2x + 1).

Solution

The problem shown in the image involves dividing the polynomial 10x2+4x3+3-10x^2 + 4x^3 + 3 by x22x+1x^2 - 2x + 1. The goal is to express the result in the form of:

Quotient+Remainderx22x+1\text{Quotient} + \frac{\text{Remainder}}{x^2 - 2x + 1}

I will walk through the polynomial long division.

Step 1: Arrange the polynomials in standard form

We need to divide:

4x310x2+3x22x+1\frac{4x^3 - 10x^2 + 3}{x^2 - 2x + 1}

Step 2: Perform the division

  • First, divide the leading term of the dividend 4x34x^3 by the leading term of the divisor x2x^2, which gives 4x4x.

  • Multiply 4x4x by the entire divisor (x22x+1)(x^2 - 2x + 1), which results in:

    4x(x22x+1)=4x38x2+4x4x \cdot (x^2 - 2x + 1) = 4x^3 - 8x^2 + 4x

  • Subtract this from the original dividend:

    (4x310x2+3)(4x38x2+4x)=2x24x+3(4x^3 - 10x^2 + 3) - (4x^3 - 8x^2 + 4x) = -2x^2 - 4x + 3

Step 3: Repeat the process

  • Divide the new leading term 2x2-2x^2 by x2x^2, which gives 2-2.

  • Multiply 2-2 by the divisor (x22x+1)(x^2 - 2x + 1), which gives:

    2(x22x+1)=2x2+4x2-2 \cdot (x^2 - 2x + 1) = -2x^2 + 4x - 2

  • Subtract this from 2x24x+3-2x^2 - 4x + 3:

    (2x24x+3)(2x2+4x2)=8x+5(-2x^2 - 4x + 3) - (-2x^2 + 4x - 2) = -8x + 5

Step 4: Write the result

The quotient is 4x24x - 2, and the remainder is 8x+5-8x + 5. Therefore, the division can be

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Math Problem Analysis

Mathematical Concepts

Polynomial Division
Algebra
Remainder Theorem

Formulas

Polynomial Long Division

Theorems

Division Algorithm for Polynomials

Suitable Grade Level

Grades 10-12