Question

factorise:

2a³+16b³-5a-10b​

Answer 1

Step-by-step explanation:

here is your answer of your question

Answer 2

Answer :

• 2a³ + 16b³ - 5a - 10b = (a + 2b) (2a² - 4ab + 8b² - 5)

Given :

• 2a³ + 16b³ - 5a - 10b

To find :

• Factorise

Solution :

》2a³ + 16b³ - 5a - 10b

》2(a³ + 8b³) - 5(a + 2b)

》2(a³ + (2b)³) - 5(a + 2b)

As we know that

• a³ + b³ = (a + b) (a² - ab + b²)

》2[(a + 2ab) (a² - 2ab + 4b²)] - 5) a + 2b)

》(a + 2b) (2a² - 4ab + 8b² - 5)

Hence, 2a³ + 16b³ - 5a - 10b = (a + 2b) (2a² - 4ab + 8b² - 5)