Question

help me to answer this question pls​

Answer 1

Answer:

x² + 4x² + (-7x²)

5x² - 7x² = -2x²

Answer 2

Answer:

-3x^2

Step-by-step explanation:

x^2 + 4x^2 + (-7x^2)

= 5x^2 - 7x^2

=> - 3x^2