Question

9x^2-9x+4=7x^2
решите пожалуйста уравнение)

Answer 1

$2 x^{2} -9x+4=0$
$D=49$
$x_{1}=4$
$x_{2} = frac{1}{2}$

Answer 2

9x^2-9x+4-7x^2 = 0
2x^2 - 9x+4=0
D = 81 - 32 = 49
x1 = 9 -7 / 4 = 1/2 = 0.5
x2 = 9 +7/4 = 4