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Simplify Combining like Terms: - Z2 + 13z2 − 5z + 7z3 − 15z - CBSE Class 7 - Mathematics

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Question

Simplify combining like terms: - z2 + 13z2 − 5z + 7z3 − 15z

Solution

− z2 + 13z2 − 5z + 7z3 − 15z = 7z3 − z2 + 13z2 − 5z − 15z

= 7z3 + z2 (−1 + 13) + z (−5 − 15)

= 7z3 + 12z2 − 20z

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics for Class 7 (2018 to Current)
Chapter 12: Algebraic Expressions
Ex. 12.20 | Q: 1.2 | Page no. 239
Solution Simplify Combining like Terms: - Z2 + 13z2 − 5z + 7z3 − 15z Concept: Addition and Subtraction of Algebraic Expressions.
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