Question

Factorise-
${4x}^{2} - 98 {y}^{2}$

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Answer 1

hii....................

Answer 2

Answer:

$\sf \to \: {4x}^{2} - 98 {y}^{2} \\ \\ \sf \to \:xy \: (4x - 98y) \\ \\ \sf \to \red{xy \: \times 2(2x - 49)}$