Question

9a2-4b2+16c2-1-4b-24ac resolve in facor​

Answer 1

Answer:

( 3a - 2b - 4c - 1 ) ( 3a + 2b - 4c + 1 )

Step-by-step explanation:

9a² - 4b² + 16c² - 1 - 4b - 24ac

= ( 9a² - 24ac + 16c² ) - ( 4b² + 4b + 1 )

= ( (3a)² - 2(3a)(4c) + (4c)² ) - ( (2b)² + 2(2b) + 1 )

= ( 3a - 4c )² - ( 2b + 1 )²

= ( 3a - 4c - 2b - 1 ) ( 3a - 4c + 2b + 1 )

= ( 3a - 2b - 4c - 1 ) ( 3a + 2b - 4c + 1 )

Answer 2

Answer:

we have

Step-by-step explanation:

9a^2+4b^2+16c^2+12ab-16bc-24ca

{(3a)^2+(-2b)^2+ (4c)^2-2(2a)(3b)+2(-2b)(2c)-2 (3a)(4c)

(3b+2b-4c)^2

(3b+2b-4c). (3b+2b-4c)