Chapter 5: Q. 54 (page 498)

In the following exercises, add the polynomials.
$(- 5 x^{2} - 4 x y - 3 y^{2}) + (2 x^{2} - 7 x y)$

Short Answer

Expert verified

Hence,

$(- 5 x^{2} - 4 x y - 3 y^{2}) + (2 x^{2} - 7 x y) = - 3 x^{2} - 11 x y - 3 y^{2}$

Step by step solution

Step 1. Given information

$\begin{array}{l} Thegivenexpressionsis \\ (- 5 x^{2} - 4 x y - 3 y^{2}) + (2 x^{2} - 7 x y) \\ Wehavetofindthesum. \end{array}$

Step 2. Add the polynomials

$\begin{array}{l} \Rightarrow (- 5 x^{2} - 4 x y - 3 y^{2}) + (2 x^{2} - 7 x y) \\ = - 5 x^{2} - 4 x y - 3 y^{2} + 2 x^{2} - 7 x y [Rewritewithoutparentheses] \\ = - 5 x^{2} + 2 x^{2} - 4 x y - 7 x y - 3 y^{2} [Combinetheliketerms] \\ = - 3 x^{2} - 11 x y - 3 y^{2} [Simplify] \end{array}$

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In the following exercises, add the polynomials.
$(- 5 x^{2} - 4 x y - 3 y^{2}) + (2 x^{2} - 7 x y)$

Short Answer

Step by step solution

Step 1. Given information

Step 2. Add the polynomials

One App. One Place for Learning.

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In the following exercises, add the polynomials.-5x2-4xy-3y2+2x2-7xy

Short Answer

Step by step solution

Step 1. Given information

Step 2. Add the polynomials

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Calculus

Statistics

Discrete Mathematics

Geometry

Applied Mathematics

Study anywhere. Anytime. Across all devices.

In the following exercises, add the polynomials.
$(- 5 x^{2} - 4 x y - 3 y^{2}) + (2 x^{2} - 7 x y)$