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Byju's Answer
Standard VIII
Mathematics
Like Terms
x2 -y2z +y2 -...
Question
(
x
2
−
y
2
)
z
+
(
y
2
−
z
2
)
x
Open in App
Solution
(
x
2
−
y
2
)
z
+
(
y
2
−
z
2
)
x
Above terms can be written as,
z
x
2
−
z
y
2
+
x
y
2
−
x
z
2
Rearrange the above terms we get,
z
x
2
−
x
z
2
+
x
y
2
−
z
y
2
Take out common in both terms,
z
x
(
x
−
z
)
+
y
2
(
x
−
z
)
(
x
−
z
)
(
z
x
+
y
2
)
Suggest Corrections
0
Similar questions
Q.
Multiply the monomial by the binomial and find the value of each for x = −1, y = 0.25 and z = 0.05:
(i) 15y
2
(2 − 3x)
(ii) −3x(y
2
+ z
2
)
(iii) z
2
(x − y)
(iv) xz(x
2
+ y
2
)
Q.
Find the angle of intersection of the following curves
(i) y
2
= x and x
2
= y
(ii) y = x
2
and x
2
+ y
2
= 20
(iii) 2y
2
= x
3
and y
2
= 32x
(iv) x
2
+ y
2
− 4x − 1 = 0 and x
2
+ y
2
− 2y − 9 = 0
(v)
x
2
a
2
+
y
2
b
2
=
1
and x
2
+ y
2
= ab
(vi) x
2
+ 4y
2
= 8 and x
2
− 2y
2
= 2
(vii) x
2
= 27y and y
2
= 8x
(viii) x
2
+ y
2
= 2x and y
2
= x
Q.
Factorise
x
2
(
y
−
z
)
+
y
2
(
z
−
x
)
+
z
2
(
x
−
y
)
Q.
Eliminate
x
,
y
,
z
from the equations
x
2
(
y
+
z
)
a
3
=
y
2
(
z
+
x
)
b
3
=
z
2
(
x
+
y
)
c
3
=
x
y
z
a
b
c
=
1
.
Q.
If y is the mean proportional between x and z, prove that :
x
2
-
y
2
+
z
2
x
-
2
-
y
-
2
+
z
-
2
=
y
4
.
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