Chapter 8: Q29. (page 406)

Evaluate the expression when $x = - 5$ and $y = - 7$ .
$2 x^{2} y$

Short Answer

Expert verified

The value of given expression would be $- 350$ .

Step by step solution

Step 1. Given Information.

An expression: $2 x^{2} y$

Step 2. Calculation.

To find the value of the given expression, we will substitute $x = - 5$ and $y = - 7$ in our given expression as shown below:

$\begin{matrix} 2 x^{2} y = 2 {(- 5)}^{2} (- 7) (Substitutinggivenvalues) \\ = - 14 \cdot 25 (Usingproperty (-) (-) = (+)) \\ = - 350 \end{matrix}$

Step 3. Conclusion.

The value of given expression would be $- 350$ .

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Evaluate the expression when $x = - 5$ and $y = - 7$ .
$2 x^{2} y$

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. Calculation.

Step 3. Conclusion.

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Evaluate the expression when x=-5 and y=-7.2x2y

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. Calculation.

Step 3. Conclusion.

One App. One Place for Learning.

Most popular questions from this chapter

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Study anywhere. Anytime. Across all devices.

Evaluate the expression when $x = - 5$ and $y = - 7$ .
$2 x^{2} y$