Question

d) Add: i) 3mn, -5mn , 8mn, -4mn​

Answer 1

Answer:

3mn-5mn,8mn-4mn

=2mn,4mn

Answer 2

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Add: i) 3mn, -5mn , 8mn, -4mn

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SOLUTION :−

When term have the same algebraic factors, they are like terms.

Then, we have to add the like terms

= 3mn + (-5mn) + 8mn + (- 4mn)

= 3mn - 5mn + 8mn - 4mn

= mn (3 - 5 + 8 - 4)

= mn (11 - 9)

= mn (2)

= 2mn

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