Simplify the following expressions:
(i) (x + y + z)(x + y – z)
Answers
Answered by
2
Answer:
Expand
(
x
+
y
+
z
)
(
x
−
y
−
z
)
by multiplying each term in the first expression by each term in the second expression.
x
⋅
x
+
x
(
−
y
)
+
x
(
−
z
)
+
y
x
+
y
(
−
y
)
+
y
(
−
z
)
+
z
x
+
z
(
−
y
)
+
z
(
−
z
)
Simplify terms.
Tap for more steps...
x
2
−
y
2
−
y
z
−
z
y
−
z
2
Subtract
z
y
from
−
y
z
.
Tap for more steps...
x
2
−
y
2
−
2
y
z
−
z
2
Similar questions