Question

[2000x(100000-400x)]×3/5

Answer 1

$\huge\mathfrak{Answer:}$

$2000x(100000 - 400x) \times \frac{3}{5}$

$2000x \times 100000 - 2000x \times 400x \times \frac{3}{5}$

$\frac{200000000x - 800000 {x}^{2} \times 3 }{5}$

$40000000x - 800000 {x}^{2} - 3$