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lys-0071 [83]
3 years ago
9

4x^2-x-3=0 solve by completing the square x= ??

Mathematics
1 answer:
PIT_PIT [208]3 years ago
4 0
Hello,

4x²-x-3=0
==>(2x)²-2*1/2*x+1/4-3-1/4=0
==>(2x-1/2)²-13/4=0
==>(4x-1)²-13=0
==>(4x-1-√13)(4x-1+√13)=0
==> x=(1+√13)/4 or x=(1-√13)/4



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