find x

Submitted by samsungo on 11. February 2007 - 7:41

find x

1 + x²/4 = 2x + 1

Submitted by Tutor on 11. February 2007 - 7:42.

We have 1 + x²/4 = 2x + 1

It can be re written as

4+x² =4(2x+1)

4+x² =8x+4

or x² -8x=0 (the factor 4 cancels out)

Taking the factor x as common we have X(x-8)=0

Or x=0 or x=8 is the solution

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