Question

Add the following:
a) 2x-y+2xy,y+z-yz,z-x+xz
b) 2a²b²-3ab+5,3-9ab+3a²b²
c) 3l²mn-lm²n,2lm²n+lmn², -3lmn²+2l²mn.
please help me​

Answer 1

Step-by-step explanation:

arrange in same terms.

then sum each

and find answer.

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