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Byju's Answer
Standard IX
Mathematics
Laws of Exponents for Real Numbers
Find the prod...
Question
Find the product
(
x
+
y
−
z
)
(
x
2
+
y
2
+
z
2
−
x
y
+
y
z
+
z
x
)
.
Open in App
Solution
(
x
+
y
−
z
)
(
x
2
+
y
2
+
z
2
−
x
y
+
y
z
+
z
x
)
=
x
(
x
2
+
y
2
+
z
2
−
x
y
+
y
z
+
z
x
)
+
y
(
x
2
+
y
2
+
z
2
−
x
y
+
y
z
+
z
x
)
−
z
(
x
2
+
y
2
+
z
2
−
x
y
+
y
z
+
z
x
)
=
x
3
+
x
y
2
+
x
z
2
−
x
2
y
+
x
y
z
+
z
x
2
+
y
x
2
+
y
3
+
y
z
2
−
x
y
2
+
y
2
z
+
z
x
y
−
z
x
2
−
z
y
2
−
z
3
+
x
y
z
−
y
z
2
−
z
2
x
=
x
3
+
y
3
−
z
3
+
3
x
y
z
Suggest Corrections
12
Similar questions
Q.
Find the product using appropriate identity:
(
x
+
y
−
z
)
(
x
2
+
y
2
+
z
2
−
x
y
+
y
z
+
z
x
)
Q.
Find the product:
(x + y − z) (x
2
+ y
2
+ z
2
− xy + yz + zx)
Q.
Using the identity and proof:
x
3
+
y
3
+
z
3
−
3
x
y
z
=
(
x
+
y
+
z
)
(
x
2
+
y
2
+
z
2
−
x
y
−
y
z
−
z
x
)
.
Q.
x
3
+
y
3
+
z
3
−
3
x
y
z
≥
(
x
+
y
+
z
)
(
x
2
+
y
2
+
z
2
−
x
y
−
y
z
−
z
x
)
.
State whether the above statement is true or false.
Q.
If
x
+
y
+
z
=
10
and
x
2
+
y
2
+
z
2
=
40
find
x
y
+
y
z
+
z
x
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RS - Standard IX
Laws of Exponents for Real Numbers
Standard IX Mathematics
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