in the following determine whether the given values are solutions of the equation or not
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if x=sqrt(2);
then
x2+sqrt(2)x-4=0
=>{sqrt(2)2}+sqrt(2)*sqrt(2)-4=0
=>(2+2)-4=0
=>4-4=0
=>0=0(proved);
don't use the braces , i have used since there is a writing problem....
then
x2+sqrt(2)x-4=0
=>{sqrt(2)2}+sqrt(2)*sqrt(2)-4=0
=>(2+2)-4=0
=>4-4=0
=>0=0(proved);
don't use the braces , i have used since there is a writing problem....
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