Question

From the sum of 3x²-5x+3 and -5x² - 6x + 7, subtract 2x² - 10x+9 pls answer quickly in correct method ​

Answer 1

Answer:

3x^2-5x+3+(-5x^2-6x+7)= -2x^2-11x+10

on subtracting 2x^2-10x+9 from -2x^2-11x+10

we get , -21x+19

Answer 2

Answer:

= -4x² -21x + 19

Step-by-step explanation:

= 3x² - 5x + 3 + (-5x²) - 6x + 7 - 2x² - 10x + 9

= (3x²-5x²-2x²) + (-5x - 6x - 10x) + (3 + 7 + 9)

= -4x² + (-21x) + 19

= -4x² -21x + 19