Solve :
216x^6 - 793x^3 +216 = 0
Answers
Answered by
10
Answer:
It can be done by splitting the middle term.
Solution in this pic.
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Answered by
5
Answer:
Step-by-step explanation:
216x^6-793x^3+216=0
216x^6-729x^3-64x^3+216=0
(216x^6-729x^3)-(64x^3+216)=0
27x^3(8x^3-27)-8(8x^3-27)=0
------(taking common)
(27x^3-8)(8x^3-27)=0
27x^3-8=0 or 8x^3-27=0
x^3=8/27 or x^3=27/8
x=2/3 or x= 3/2 --(cube root)
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