Question

Simplify the following expressions: (i) (x + y + z)(x + y – z)

Answer 1

Answer:

m

m

n

nn

Explanation:

m

m

.

.

..

.

.

.

.

.

.

.

.

.

.

.

.

.mmn

n

n

n

Answer 2

Answer:

sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Explanation: