Simplify :- √81 4 − 8√343 3 + 15√32 5 + √225
Answers
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Step-by-step explanation:
Given : 4 \sqrt{81} -8\sqrt[3]{343} +15\sqrt[5]{32} +\sqrt{ 225}4
81
−8
3
343
+15
5
32
+
225
To Find : Value
Solution:
4 \sqrt{81} -8\sqrt[3]{343} +15\sqrt[5]{32} +\sqrt{ 225}4
81
−8
3
343
+15
5
32
+
225
\sqrt{81}=9
81
=9
\sqrt[3]{343} =7
3
343
=7
\sqrt[5]{32} =2
5
32
=2
\sqrt{ 225} =15
225
=15
Substitute the values
4(9) -8(7)+15(2) +(15)4(9)−8(7)+15(2)+(15)
2525
Hence 4 \sqrt{81} -8\sqrt[3]{343} +15\sqrt[5]{32} +\sqrt{ 225}=254
81
−8
3
343
+15
5
32
+
225
=25
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