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Byju's Answer
Standard VIII
Mathematics
Distributive Property of Multiplication
x2-7x+10x2-5x...
Question
x
2
−
7
x
+
10
x
2
−
5
x
−
14
×
x
3
+
8
x
3
−
8
×
x
2
+
2
x
+
4
x
2
−
2
x
+
4
×
x
−
7
x
−
5
=
?
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Solution
x
2
−
7
x
+
10
x
2
−
5
x
−
14
×
x
3
+
8
x
3
−
8
×
x
2
+
2
x
+
4
x
2
−
2
x
+
4
×
x
−
7
x
−
5
x
2
−
2
x
−
5
x
+
10
x
2
−
7
x
+
2
x
−
14
×
x
3
+
8
x
3
−
8
×
x
2
+
2
x
+
4
x
2
−
2
x
+
4
×
x
−
7
x
−
5
(
x
−
2
)
(
x
−
5
)
(
x
−
7
)
(
x
+
2
)
×
x
3
+
2
3
x
3
−
2
3
×
x
2
+
2
x
+
4
x
2
−
2
x
+
4
×
x
−
7
x
−
5
x
−
2
x
+
2
×
(
x
+
2
)
(
x
2
−
2
x
+
4
)
(
x
−
2
)
(
x
2
+
2
x
+
4
)
×
x
2
+
2
x
+
4
x
2
−
2
x
+
4
=
1
[
u
s
i
n
g
=
a
3
+
b
3
=
(
a
+
b
)
(
a
2
+
b
2
−
a
b
)
a
3
+
b
3
=
(
a
−
b
)
(
a
2
+
b
2
+
a
b
)
]
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Similar questions
Q.
x
2
−
x
−
1
x
3
−
8
=
A
x
−
2
+
B
x
+
C
x
2
+
2
x
+
4
⇒
A
+
B
=
Q.
Multiply the following and write your answer in lowest terms:
x
2
−
3
x
−
10
x
2
−
x
−
20
×
x
2
−
2
x
+
4
x
3
+
8
Q.
Which of the following are quadratic equations?
(i) x
2
+ 6x − 4 = 0
(ii)
3
x
2
-
2
x
+
1
2
=
0
(iii)
x
2
+
1
x
2
=
5
(iv)
x
-
3
x
=
x
2
(v)
2
x
2
-
3
x
+
9
=
0
(vi)
x
2
-
2
x
-
x
-
5
=
0
(vii) 3x
2
− 5x + 9 = x
2
− 7x + 3
(viii)
x
+
1
x
=
1
(ix) x
2
− 3x = 0
(x)
x
+
1
x
2
=
3
x
+
1
x
+
4
(xi) (2x + 1) (3x + 2) = 6(x − 1) (x − 2)
(xii)
x
+
1
x
=
x
2
,
x
≠
0
(xiii) 16x
2
− 3 = (2x + 5) (5x − 3)
(xiv) (x + 2)
3
= x
3
− 4
(xv) x(x + 1) + 8 = (x + 2) (x − 2)