Question

factorise the following. a) 25x²+30x+9​

Answer 1

$\textit{\large{\underline{\underline{\pink{Step by step Explanation:-}}}}}$

$25x {}^{2} + 30x + 9 \\ = 25x {}^{2} + 15x + 15x + 9 \\ = 5x(5x + 3) + 3(5x + 3) \\ = (5x + 3)(5x + 3)$

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Answer 2

Step-by-step explanation:

25x²+15x+15x+9

5x(5x+3)+3(5x+3)

(5x+3)(5x+3)