Question

qual o coeficientes de 4x²-27=x² .. to na duvida

Answer 1

$4 x^{2} -27= x^{2} \\\\\\4 x^{2} -27- x^{2}=0 \\\\ 3x^{2} -27=0 \\\\\\ a=3; b=0; c=-27\\\\\\3x^{2} -27=0 \\\\3 x^{2} =27\\\\ x^{2} =\frac{27}{3} \\\\ x^{2} =9\\ \\x=+- \sqrt{9} \\\\ x=+-3\\\\\\ S=(-3;3)$

Answer 2

Coeficiente a=4 b=0 c=-27