Question

7 x равно 4 икс в квадрате

Answer 1

$7x = 4 {x}^{2} \\ 7x - 4 {x}^{2} = 0 \\ x \times (7 - 4x) = 0 \\ x = 0 \\ 7 - 4x = 0 \\ x = 0 \\ x = \frac{7}{4} \\ x1 = 0 \\ x2 = 1.75$