Question

What is the sum of 3x2-x + 4 and 2x - 4x² - 7?

Answer 1

Answer:

$\tt \boxed{ - \tt \: x^2+x+4}$

Step-by-step explanation:

Combine Like Terms:

=3x^2−x+4+2x−4x^2

=(3x^2−4x^2)+(−x+2x)+(4)

=−x^2+x+4

Answer:

=−x^2+x+4