Question

(3x-2y-2)(3x+2y-2)=???

Answer 1

Step by step solution :
Step  1  :
  : ((3x + 2y) • 2) - 2 • (3x - 2y)
Step  2  
  : 2 • (3x + 2y) - 2 • (3x - 2y) Step  3  :

Pulling out like terms : 3.1     
Pull out     2 

After pulling out, we are left with : 
      2 • ( 1  *  (3x+2y) +( (-1)  *  (3x-2y) ))

Final result : 8y

Answer 2

(3x-2y-2)(3x+2y-2)

(3x-2-2y)(3x-2+2y)

by formula a^2 - b^2

here,  (3x-2)^2  - (2y)^2

= by formula (a+b)^2 = a^2 + b^2 +2ab

= 9x^2 +4 -2(6x) - 4y^2

= 9x^2 + 4 - 12x - 4y^2

i hope this will help yuo



-by ABHAY