Question

i) Multiply: a2+5ab-3b2 and 2a2b ​

Answer 1

Answer:

2a³ + 12a²b + 4ab² + 6b³

Step-by-step explanation:

(a² + 5ab -  3b²) (2a+2b)

a² (2a+2b) + 5ab (2a+2b) - 3b² (2a+2b)

2a³ + 2a²b + 10a²b + 10 ab² - 6ab² + 6b³

2a³ + 12a²b + 4ab² + 6b³

There you go :)