What is the sum of 4x² + 2x - 5 and 722 - - 5x + 2?

1122 - 32 - 3

1122 - 32 + 3

1122 + 30 - 3

1102 + 3x + 3

I would be guessing

Sum of 4x² + 2x - 5 and 7x² - 5x + 2 is 11x² - 3x - 3.

Solution:

Given expression:

4x² + 2x - 5 and 7x² - 5x + 2

To find the sum of these expressions.

Sum of 4x² + 2x - 5 and 7x² - 5x + 2

= (4x² + 2x - 5) + (7x² - 5x + 2)

= 4x² + 2x - 5 + 7x² - 5x + 2

Arrange the terms with same power together.

= 4x² + 7x² + 2x - 5x - 5 + 2

= 11x² - 3x - 3

Sum of 4x² + 2x - 5 and 7x² - 5x + 2 is 11x² - 3x - 3.