Question

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xfavor es para hoy

Answer 1

Respuesta:

$(x - 3)(x + 3) = {x}^{2} - 9$

$(2x - 6)(2x + 6) = 4 {x}^{2} - 36$

$(6 {a}^{2} + 3b)(3b - 6 {a}^{2} ) = 9 {b}^{2} - 36 {a}^{4}$

$(0.1 {x}^{2} + 0.2 {y}^{3} )(0.1 {x}^{2} - 0.2 {y}^{3} ) = \frac{1}{100} {x}^{4} - \frac{1}{25} {y}^{6}$

$( \frac{1}{8} {z}^{ - 2} + \frac{1}{3} {y}^{2} )( \frac{1}{8} {z}^{ - 2} - \frac{1}{3} {y}^{2} = \frac{9 - 64 {y}^{4} {z}^{4} }{576 {z}^{4} }$