Question

9. Find the sum of 4y3 + 12y2 + 8y - 9 and 6y3 - 4y2 - 3y +6

Answer 1

Answer:

Step-by-step explanation:

( 4y3 + 12y2 + 8y - 9 )+(6y3 - 4y2 - 3y +6)

=10y3+8y2+5y-3

Answer 2

The sum is 10y3 + 8y2 +5y -3

Explanation :

The sum =

$\tt{\rightarrow4y3+12y2+8y-9+6y3-4y2-3y+6 }$

$\tt{\rightarrow4y3 + 6y3 + 12y2 - 4y2 + 8y -3y - 9 + 6 }$

$\tt{\Rightarrow10y3 + 8y2 +5y -3 }$