Question

Explain the conditions that are usually needed for algebraic expressions to be added and subtracted

Answer 1

Step-by-step explanation:

To add two or more monomials that are like terms, add the coefficients; keep the variables and exponents on the variables the same. To subtract two or more monomials that are like terms, subtract the coefficients; keep the variables and exponents on the variables the same

Answer 2

Solution i) :- y-z

Solution ii) :- 1/2 (x+y) or x+y / 2

Solution iii) :- z×z = z2

Solution iv) :- x2+y2

Solution v) :- 3mn+5