Answer:
Step-by-step explanation:
x² - 2x + 3 - [ 3x² + 4x - 3] = x² - 2x + 3 - 3x² - 4x + 3
=x² - 3x² - 2x - 4x + 3 + 3
= -2x² - 6x + 6
hello :
(x² - 2x+3) - ( 3x² + 4x – 3) = x² - 2x+3 - 3x² - 4x + 3
=(x²-3x²)+(-2x-4x)+(3+3)
(x² - 2x+3) - ( 3x² + 4x – 3) = -2x²-6x+6
