Question

Add and subtract (i) m – n, m + n (ii) mn + 5 – 2, mn + 3

Answer 1

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Answer 2

Given:

We have given diiferent terms 1) m-n,m+n 2)mn+5-2,mn+3

To Find:

We have  to find the value by  add the terms and subtract the terms?

Step-by-step explanation:

• 1)Since, we have given terms m-n,m+n

•  First of all we will add the terms we will write them as

      =m-n+m+n

• In the above equation we take like terms all together then solve it

     =m+m-n+n=2m

• Now  we will Subtract the terms we will write them as

      =m-n-(m+n)

• Now we will open the bracte then write as

     =m-n-m-n

• In the above equation we take like terms all together then solve it

     =m-m-n-n=-2n

• 2)Since, we have given terms mn+5-2,mn+3

 First of all we will add the terms we will write them as

      =mn+5-2+mn+3

• In the above equation we take like terms all together then solve it

     =mn+mn+5+3-2=2mn+6

• Now  we will Subtract the terms we will write them as

      =mn+5-2-(mn+3)

• Now we will open the bracte then write as

     =mn+5-2-mn-3

• In the above equation we take like terms all together then solve it

     =mn-mn+5-2-3=0