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Simplify the following: (3x^4y^2(2xy)^5)/((2x^3y^3)^2 - Mathematics

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Question

Simplify the following:

`(3x^4y^2(2xy)^5)/((2x^3y^3)^2`

Simplify
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Solution

Given: `(3x^4y^2(2xy)^5)/((2x^3y^3)^2`

Step-wise calculation:

1. Expand the powers inside the parentheses:

(2xy)5 = 25 × x5 × y5

(2xy)5 = 32x5y5

(2x3y3)2 = 22 × (x3)2 × (y3)2

(2x3y3)2 = 4x6y6 

2. Substitute these back:

`(3x^4y^2 xx 32x^5y^5)/(4x^6y^6) = (3 xx 32 xx x^(4 + 5) xx y^(2 + 5))/(4 xx x^6 xx y^6)`

`(3x^4y^2 xx 32x^5y^5)/(4x^6y^6) = (96x^9y^7)/(4x^6y^6)`

3. Simplify the coefficients and subtract exponents of like bases:

`96/4 = 24`

x9 – 6 = x3

y7 – 6 = y1

y7 – 6 = y

Thus, 24x3y.

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Chapter 6: Indices/Exponents - Exercise 6A [Page 129]

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Nootan Mathematics [English] Class 9 ICSE
Chapter 6 Indices/Exponents
Exercise 6A | Q 2. (i) | Page 129
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