Question

(2x+1/x-3 +2x-1/x+3)*x²-9/10x²+15

Answer 1

Ответ:

$(2x + \frac{1}{x} - 2x - \frac{1}{x} + 3) \times {x}^{2} - \frac{9}{10} {x}^{2} + 15$

$4x \times {x}^{2} - \frac{9}{10} {x}^{2} + 15$

$4 {x}^{3} - \frac{9}{10} {x}^{2} + 15$