Factorize 9(2a-b)^2-4 (2a-b)-13
Answers
Answered by
1
Answer:
(6a-2b+5/9)*(6a-2b-17/9)
Step-by-step explanation:
9(2a-b)^2-4 (2a-b)-13=
(3*(2a-b))^2-2*3*2/3* (2a-b)+ (2/3)^2-(13+4/9)=
(3*(2a-b)- 2/3)^2- 13 4/9=
(6a-2b-2/3)^2- 121/9=
(6a-2b-2/3)^2- (11/9)^2=
(6a-2b-2/3+11/9)*(6a-2b-2/3-11/9)=
(6a-2b+5/9)*(6a-2b-17/9)
Similar questions