Question

ayuden x favor les doy coronita

Answer 1

Explicación paso a paso:

$7 {x}^{2} - \frac{1}{2} {x}^{2} - \frac{5}{2} {x}^{2} + 2 {x}^{2} + \frac{3}{2} {x}^{2} = \\ 9 {x}^{2} - \frac{3}{2} {x}^{2} = \\ \frac{18}{2} {x}^{2} - \frac{3}{2} {x}^{2} = \frac{15}{2} {x}^{2}$