Answer:
∴ ( 2 x² - 3 x²) + ( 2x² - 4 x²) = - 3 x²
Step-by-step explanation:
( 2 x² - 3 x²) + ( 2x² - 4 x²)
= 2 x² + 2 x² - 3 x² - 4 x²
= 4 x² - 7 x²
= - 3 x²
