Question

write any three different pairs of like terms. Then find the sum and difference of each pair(PLEASE ANSWER THIS CORRECTLY)I dont understand this this of maths

Answer 1

Answer:

pair 1: 3p, 5p

pair 2: 5xy, 7xy

pair 3: 12z,25z

Pair 1

3p and 5p are both like terms which have p in common

Sum

3p and 5p are like terms so they can be multiplied,divided,subtracted and added by each other

3p +5p

=(3+5)p because p is in common

So the sum of these terms is 8p

Difference

the solution is

5p-3p

=(5-2)p

= difference of these terms is 3p

Pair 2

5xy,7xy

Sum

5xy +7xy

=(5+7)xy

so the sum is 12xy

Difference

7xy-5xy

=(7-5)xy

so the difference of these terms is 2xy

Pair 3

12z,25z

Sum

12z+25z

=(12+25)z

so the sum of 12z and 25z is 37z

Difference

25z-12z

=(25-12)z

so the difference is 13z

Hope you understood the topic.