Question

x^2-4x+35=-9x^2+11x+45

Answer 1

$x^{2} -4x+35=-9x^{2}+11x+45;$
$10x^{2}-15x-10=0;$
$D=225+400=625; sqrt{D}=25;$
$x_{1}=(15+25):20=2;$
$x_{2} =(15-25):20=-0,5.$
Ответ: -0,5; 2.