Identify the errors and correct them (4n)2 – 2n + 3 = 4n2 – 2n + 3 - Mathematics

Identify the errors and correct them

(4n)² – 2n + 3 = 4n² – 2n + 3

Sum

(4n)² – 2n + 3 = 16n² – 2n + 3

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Chapter 3: Algebra - Exercise 3.2 [Page 86]

Chapter 3 Algebra
Exercise 3.2 | Q 6. (iv) | Page 86

Find and correct the errors in the statement: 2x + 3y = 5xy

Find and correct the errors in the statement: 5y + 2y + y − 7y = 0

Find and correct the errors in the statement: (2x)² + 5x = 4x + 5x = 9x

Find and correct the errors in the following mathematical statement. Substituting x = −3 in

x² − 5x + 4 gives (−3)² − 5 (−3) + 4 = 9 − 15 + 4 = −2

Find and correct the errors in the statement: (y − 3)² = y² − 9

Find and correct the errors in the statement: (2a + 3b) (a − b) = 2a² − 3b²

Find and correct the errors in the statement: (a − 4) (a − 2) = a² − 8

Find and correct the errors in the statement: `(3x^2)/(3x^2) = 0`

Identify the errors and correct them

7y² – y² + 3y² = 10y²

Identify the errors and correct them

6xy + 3xy = 9x²y²