Question

please tell me the correct answer and also explain it...​

Answer 1

Answer:

a):  c^2 -cd -d^2     b):  mn^2(4m - 3)

Step-by-step explanation:

a):  (c^2 + 2cd) + (-3cd - d^2)    (Open the brackets)

= c^2+2cd-3cd-d^2

= c^2 -cd -d^2

b):   3mn^2 + 4m^2n^2 + (-5mn^2) + (-mn^2)

=  3mn^2 + 4m^2n^2 -5mn^2 -mn^2      (add similar entries)

=  4m^2n^2 + 3mn^2 -6mn^2

=   4m^2n^2 -3mn^2   (take common entries)

=  mn^2(4m - 3)

HOPE IT HELPS UHH...:)

STAY BLESSED... ;)

Answer 2

Answer:

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