Question

Subtract 7x^2+4x-9 from 5x^2+10x-5. Express the answer in descending degree order

Answer 1

Hi there!

To subtract this, we can only subtract like terms. That means we only subtract 7x^2 and 5x^2, 4x and 10x, and -9 and -5. It might make more sense after the work below:

7x^2 - 5x^2 = 2x^2
4x - 10x = -6x
-9 - -5 = -4

So, the answer is 2x^2 - 6x - 4

Hope this helps!

Answer 2

Answer:

2x^2 - 6x - 4

Step-by-step explanation: