Question

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Answer 1

Respuesta:

Explicación paso a paso:

$(5x-7y)^{2} \\(5x)^{2} -(5x).(7y)+x^{2} (7y)^{2} \\25x^{2} -35xy+ 49y^{2}$

$\frac{169a^{2}-144b^{2} }{13a-12b} \\\frac{(13a+12b)(13a-12b)}{13a-12b}\\13a+12b$

$\frac{8x^{3} -125^{3} }{2x-5y} \\\frac{(2x-5y)(4x^{2}+10xy+25y^{2} )}{2x-5y} \\4x^{2}+10xy+25y^{2}$

$\frac{(5x)^{2}-(6)^{2} }{5x+6} \\\frac{(5x+6)(5x-6)}{5x+6} \\5x-6$