Question

Efetue:
a)(x²y³).(5x³y²)

b)(20a³b²):(15ab²)

Answer 1

boa tarde !!!!

$a) \\ \\ (x {}^{2} y {}^{2} ) \times (5x {}^{3}y {}^{2} ) \\ \\ x {}^{2} y {}^{2} \times 5x {}^{3} y {}^{2} \\ \\ = 5x {}^{5} y {}^{4} \\ \\ \\ b) \\ \\ (20a {}^{3} b {}^{2} ) \div (15ab {}^{2} ) \\ \\ \frac{20a {}^{3} b {}^{2} }{15ab {}^{2} } \\ \\ = \frac{4a {}^{2} }{3}$

espero que eu tenha conseguido te ajudar..