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Byju's Answer
Standard VIII
Mathematics
Addition of Negative Numbers
Tick the cor...
Question
Tick (✓) the correct answer:
40 + 3x − x
2
= ?
(a) (x + 5)(x − 8)
(b) (5 − x)(8 + x)
(c) (5 + x)(8 − x)
(d) (5 − x)(8 − x)
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Solution
(c) (5 + x)(8 − x)
40
+
3
x
-
x
2
=
40
+
8
x
-
5
x
-
x
2
=
8
(
5
+
x
)
-
x
(
5
+
x
)
=
(
8
-
x
)
(
x
+
5
)
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