2a+3b-4c, 3a-2b,-4a+5c and a-2b+c
saumyasinha:
what have we to do add or subtract?
both
Answers
Answered by
4
the answer is 2a-b+2c by adding and by sub 8a+3b-10c
Answered by
2
2a+3b-4c+(3a-2b)+(-4a+5c)+(a-2b+c).
on adding.
=2a+3b-4c+3a-2b-4a+5c+a-2b+c
=2a +3a-4a+a+3b-2b-2b-4c+5c+c.
=2a-b+2c.
on subtracting: -
2a+3b-4c-(3a-2b)-(-4a+5c)-(a-2b+c).
=2a+3b-4c-3a+2b+4a-5c-a+2b-c.
=2a-3a+4a-a+3b+2b+2b-4c-5c-c.
=2a+7b-10c
hope it helps.................
on adding.
=2a+3b-4c+3a-2b-4a+5c+a-2b+c
=2a +3a-4a+a+3b-2b-2b-4c+5c+c.
=2a-b+2c.
on subtracting: -
2a+3b-4c-(3a-2b)-(-4a+5c)-(a-2b+c).
=2a+3b-4c-3a+2b+4a-5c-a+2b-c.
=2a-3a+4a-a+3b+2b+2b-4c-5c-c.
=2a+7b-10c
hope it helps.................
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