Question

algebraic expression
add by using horizontal method ​

Answer 1

Answer:

Step-by-step explanation:

Given that,

4a³ - 3a² + 2 , 2a² - a - 1 , a³ + 2a + 3

= 4a³ - 3a² + 2 + 2a² - a - 1 + a³ + 2a + 3

= ( 4a³ + 2a³ ) + ( - 3a² + 2a² ) + ( - a + 2a ) + ( 2 + 3 - 1 )

= 6a³ - a² + a + 4 is the answer.