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Byju's Answer
Standard VII
Mathematics
Addition of Algebraic Expression
Simplify9 x-7...
Question
Simplify
(9x − 7)(2x − 5) − (3x − 8)(5x − 3)
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Solution
(
9
x
-
7
)
(
2
x
-
5
)
=
9
x
×
(
2
x
-
5
)
-
7
×
(
2
x
-
5
)
=
18
x
(
1
+
1
)
-
45
x
-
14
x
+
35
=
18
x
2
-
59
x
+
35
(
3
x
-
8
)
(
5
x
-
3
)
=
3
x
×
(
5
x
-
3
)
-
8
×
(
5
x
-
3
)
=
15
x
2
-
9
x
-
40
x
+
24
=
15
x
2
-
49
x
+
24
∴
(
2
x − 5) − (3x − 8)(5x − 3)
=
18
x
2
-
59
x
+
35
-
(
15
x
2
-
49
x
+
24
)
=
18
x
2
-
15
x
2
-
59
x
+
49
x
+
35
-
24
=
3
x
2
-
10
x
+
11
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