पदावलीला सरळ रुप द्या:

(2x + 13 - y) (2x - 13 - y)

1
4x2 - y2 - 4xy - 169
2
4x2 + y2​ + 4xy - 169
3
4x2 + y2​ - 4xy - 169
4
4x2 + y2​ - 4xy + 169

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