Question

#HELLO










.......












plz do this sum

plz do the right method

with explanation

best answer will be mark as brainliest

#No_Spaming

#Thank_You​

Answer 1

Step-by-step explanation:

9x²-21x-8

hope it may help you

Answer 2

Answer:

Identity used:

(x+a)(x+b) = x² + (a+b)x + ab

Step-by-step explanation:

(3x + 1)(3x - 8)

= (3x)² + (1 - 8)×3x + 1×-8

= 9x² - 21x - 8