Question

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$(x - 7y) ^{2} \\ (4 \times 2 + y2) ^{2}$
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Answer 1

Respuesta:

Explicación paso a paso:

$* (x - 7y)^{2} = x^{2} - 14xy + 49y^{2} \\* (4.2 + y^{2} )^{2} = (8 + y^{2})2 = 64 + 16y^{2} + y^{4}$