if x=1/3-√8 then find the value of x3-2x2-7x+5
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I am a little confused as I am getting two answers ,
1. 1/3-√8×3-2×2-7×1/3-√8+5
=1-3√8-4-7/3-√8/1+5
= 1-3√8-4-7-3√8/3+5
= -3-3√8 -7-3√8/3+5
=2-3√8-7-√8
=-5-3√8-√8
=-5-4√8
1. 1/3-√8×3-2×2-7×1/3-√8+5
=1-3√8-4-7/3-√8/1+5
= 1-3√8-4-7-3√8/3+5
= -3-3√8 -7-3√8/3+5
=2-3√8-7-√8
=-5-3√8-√8
=-5-4√8
iprantik:
sorry i didnt understand
u just do it by yourself and then try and understand its quite easy .
ok
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Answer:
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