document.write( "Question 387006: I have a problem I do not know how to work out. Could someone help me and show me step by step so I can see it please.\r
\n" ); document.write( "\n" ); document.write( "a^2-40=0\r
\n" ); document.write( "\n" ); document.write( "Thank you very much!
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Algebra.Com's Answer #273538 by tara0066(31)\"\" \"About 
You can put this solution on YOUR website!
a^2-40=0 First thing you do is add the 40 to both sides
\n" ); document.write( "a^2-40(+40)=0+40 This cancels your -40
\n" ); document.write( "a^2=40 Next, you will take the square root of both sides. (Square root is the opposite of something that is squared.)This simply removes the ^2 off of your a.
\n" ); document.write( "a=Square root of 40\r
\n" ); document.write( "\n" ); document.write( "Square root of 40 breaks down to square root of 4 and square root of 10.
\n" ); document.write( "The square root of 4 is plus or minus 2.\r
\n" ); document.write( "\n" ); document.write( "a=+-2sqrt(10)\r
\n" ); document.write( "\n" ); document.write( "When you write it, the plus or minus should go on top of each other with the + on top with the - under it.
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