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Find Each of the Following Product: (−4x2) × (−6xy2) × (−3yz2) - Mathematics

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Question

Find each of the following product:
(−4x2) × (−6xy2) × (−3yz2)

Answer in Brief

Solution

To multiply algebraic expressions, we use commutative and associative laws along with the law of indices, i.e., \[a^m \times a^n = a^{m + n}\]

We have:

\[\left( - 4 x^2 \right) \times \left( - 6x y^2 \right) \times \left( - 3y z^2 \right)\]

\[ = \left\{ \left( - 4 \right) \times \left( - 6 \right) \times \left( - 3 \right) \right\} \times \left( x^2 \times x \right) \times \left( y^2 \times y \right) \times z^2 \]

\[ = \left\{ \left( - 4 \right) \times \left( - 6 \right) \times \left( - 3 \right) \right\} \times \left( x^{2 + 1} \right) \times \left( y^{2 + 1} \right) \times z^2 \]

\[ = - 72 x^3 y^3 z^2\]

Thus, the answer is \[- 72 x^3 y^3 z^2\].

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Multiplication of Algebraic Expressions
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Chapter 6: Algebraic Expressions and Identities - Exercise 6.3 [Page 14]

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RD Sharma Mathematics [English] Class 8
Chapter 6 Algebraic Expressions and Identities
Exercise 6.3 | Q 11 | Page 14
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