Question

Add:

2x³ – 9x² + 8, 3x² – 6x – 5, 7x³ – 10x + 1 and 3 + 2x – 5x² – 4x³

Answer 1

Let’s arrange the data in a table in the form of descending power of x,

We will get rows and columns; add the data column wise;

So, the answer after adding all the expressions will be;

5x³ - 11x² – 14x + 7