Question

ayudaaaaaaaaaaaa☹ es urgente ​

Answer 1

Explicación paso a paso:

$A = ( \frac{b +B} {2} ) \times h$

$A = ( \frac{3 {x}^{3} {y}^{2} +5 {x}^{3} {y}^{2} } {2} ) \times 2xy$

$A = ( \frac{8 {x}^{3} {y}^{2} } {2} ) \times 2xy$

$A = \frac{16 {x}^{4} {y}^{3} }{2}$

$A = 8 {x}^{4} {y}^{3}$