Multiply: 2y − 4y3 + 6y5 by Y2 + Y − 3 - Mathematics

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Sum

Multiply: 2y − 4y3 + 6y5 by y2 + y − 3

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Solution

    2y  − 4y3 +  6y5
×   y2 +   y   −  3                  
    2y3 − 4y5 +  6y7   
+ 2y2 − 4y4 +   6y6
− 6y  + 12y3 − 18y5 

6y7 + 6y6 −(4+18)y5 − 4y4 + (2+12)y3 + 2y2 − 6y

= 6y7 + 6y6 − 22y5 − 4y4 + 14y3 + 2y2 − 6y

Concept: Multiplying a Polynomial by a Polynomial
  Is there an error in this question or solution?
Chapter 11: Algebraic Expressions - Exercise 11 (C) [Page 143]

APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (C) | Q 2.4 | Page 143
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