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Understanding the question :-
Given to add the following terms . We have to add only like terms .we cannot add unlike terms For solving this question Dont be confuse While adding terms Keep like terms together and add the terms Which can be done very easily
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Lets do !
Sum of 3p²q² - 4pq + 5 , -10p²q² , 15 + 9pq + 7p²q²
3p²q² - 4pq + 5 + -10p²q² + 15 + 9pq + 7p²q²
Keep like terms together:-
3p²q² - 10p²q² + 7p²q² - 4pq + 9pq + 5 + 15
Simplifying the expression
10p²q² - 10p²q² + 5pq + 20
5pq + 20
So, the Sum of 3p²q² - 4pq + 5 , -10p²q² , 15 + 9pq + 7p²q² is 5pq + 20
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Know more :-
What is like terms & unlike terms ?
Like terms :- The terms having same exponent and same variable is called like terms
Eg :- 9abc , -2abc are like terms
6c , 7c are like terms
abcd , - abcd are like terms
a²b²c² , - 6a²b²c² are like terms
Unlike terms :- The terms having different exponents or different variables (or ) different exponents and same variables
Eg :- 9a²b² , abc. are unlike terms
- 6c²d² , pqrs are unlike terms
g²h , gh² are unlike terms
Answer:
thank you soo much for your valuable thanks