Question

Resolver las siguientes ecuaciones.

Answer 1

Respuesta:

queeeeeeeeeee ya esta resuelto

Explicación paso a paso:

Answer 2

Respuesta:

$x^{2} = 81\\x^{2} -81= 0\\(x - 9) (x + 9)= 0\\x= +9 x=-9\\\\x^{2} = 25\\x^{2} -25= 0\\(x-5)(x+5)=0\\x=5 x=-5\\\\x^{2} =7\\x^{2} -7= 0\\\sqrt{x} = \sqrt{7} \\x=+/- \sqrt{7}$

$5 x^{2} = 20\\\\x^{2} = 20/5\\x^{2}= 4\\\sqrt{x^{2} } = \sqrt{4} \\x= -2 x= +2\\\\4 x^{2} = 1\\x^{2} = 1/4\\\sqrt x^{2} = \sqrt{1/4} \\x= -1/2 x = +1/2$

$x^{2} -9= 0\\(x-3)(x+3)=0\\x= +3 x=-3$

$x^{2} +6=10\\x^{2} = 10-6\\x^{2} = 4\\\sqrt{x^{2} } = \sqrt{4} \\x= -2 x=+2$

Espero te haya ayudado, faltaron las dos últimas.