wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Factorise
9(x-2y)^2-4(x-2y)-13

Open in App
Solution

Put (x − 2y) = a
∴ 9(x − 2y)2 − 4(x − 2y) − 13 = 9a2 − 4a − 13
= 9a2 − 13a + 9a − 13
= a(9a − 13) + 1(9a − 13)
= (9a − 13)(a + 1)
= [9(x − 2y) − 13][(x − 2y) + 1]
= [9x − 18y − 13][x − 2y + 1]

flag
Suggest Corrections
thumbs-up
54
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Polynomials in One Variable
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon