Question

Factorise: 4x² - 9y²​

Answer 1

Answer:

the answer is (2x+3y)(2x-3y)

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Answer 2

$\huge{\underline{\red{{}}}}$ $\huge\mathcal{\fcolorbox{cyan}{black}{\pink{Answer}}}$

$\pink\longrightarrow$ 4x² - 9y²

$\pink\longrightarrow$ (2x)² - (3y)²

$\pink\longrightarrow$ using identity a²-b² =(a+b)(a-b)

$\pink\longrightarrow$ (2x+3y)(2x-3y)