Question

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Answer 1

Step-by-step explanation:

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Answer 2

◾Question:

$factorise \: {4x}^{2} - 12xy + 9 {y}^{2} - 64$

◾Solution:

${(2x)}^{2} + 2(2x)(3y) + {(3y)}^{2} - 64 \\ {(2x + 3y)}^{2} - 64 \\{(2x + 3y)}^{2} = 64$

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