Find the Value of 'A': 9x2 + (7a - 5)X + 25 = (3x + 5)2 - Mathematics

Find the value of 'a': 9x² + (7a - 5)x + 25 = (3x + 5)²

Sum

9x² + (7a - 5)x + 25 = (3x + 5)²Comparing coefficients of x terms, we get
(7a - 5)x = 30x
7a - 5 = 30
7a = 35
a = 5

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Chapter 4: Expansions (Including Substitution) - Exercise 4 (D) [Page 64]

Chapter 4 Expansions (Including Substitution)
Exercise 4 (D) | Q 13.3 | Page 64

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