Question

Add or subtract
a)5x+3x
b)4a²+2a²
c)6xy+3xy
d)12mn-5mn
e)9x²-4x²y
d)8xy²-7xy²​

Answer 1

Answer:

a)7x

b)6a^2

c)9xy

d)7mn

e)9x^2 - 4x^3

f) 1xy^2

Step-by-step explanation:

a) simply as the algebraic expression is same so simply add the number and put (x) at last.

b) " " " "

c) " ' " "

d)

Answer 2

Answer:

Add => a ) 7x

Subtract => 2x

.

.

B ) Add => 6a^2

Subtract = > 2a^2

.

.

c) Add => 9xy

Subtract => 3xy

.

.

d) Add => -17mn

Subtract => 7mn

.

.

e) Add => -13x^4y

Subtract => 3x^2y

.

.

f) ADD => -15xy^2

Subtract => xy^2