Question

el resultado es 5ײ-16y²=​

Answer 1

Explicación paso a paso:

$5x^{2} =16y^{2} \\x^{2} = \frac{16y^{2} }{5} \\\\x=\sqrt{\frac{16y^{2} }{5} } \\\\x= \frac{4y}{2.23} \\x=1.79y$

REEMPLAZAMOS

$5(1,79y)^{2} -16y^{2} \\\\5(3,20y^{2} )-16y^{2} \\\\16y^{2} -16y^{2} =0$