Simply using appropriate property
(–3) × –18+ (–3) ×–82
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Using appropriate properties, find
(i) −
3
2
×
5
3
+
2
5
−
5
3
×
6
1
(ii)
5
2
×(−
7
3
)−
6
1
×
2
3
+
14
1
×
5
2
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Solution To Question ID 463099
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Answer
Use commutative theorem, we will get
(i)
=
3
−2
×
5
3
−
5
3
×
6
1
+
2
5
=(
5
−3
)(
3
2
+
6
1
)+
2
5
=
6
−3
+
2
5
=
6
−3+5×3
=
6
12
=2.
(ii)
5
2
×(
7
−3
)−
6
1
×
2
3
+
14
1
×
5
2
=
5
2
×(
7
−3
)+
14
1
×
5
2
−
6
1
×
2
3
(commutative)
=
5
2
×(
7
−3
+
14
1
)−
4
1
(Distributive)
=
5
2
×(
14
−5
)−
4
1
=−
7
1
−
4
1
=
28
−11