document.write( "Question 876531: I cannot solve (-3-(sqrt-7))^2? I have seen example questions similar in the math books provided at school, but theres an unexplained two that appear in the distributing the exponent step, and that throws me off more than the anything, help? \n" ); document.write( "

Algebra.Com's Answer #528820 by josgarithmetic(39618) $\"\"$ $\"About$

You can put this solution on YOUR website!
You might mean $\"highlight_green%28%28-3-sqrt%28-7%29%29%5E2%29\"$ instead of $\"%28-3-%28sqrt-7%29%29%5E2\"$ .\r
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\n" ); document.write( "\n" ); document.write( "The form of expression is a little uncomfortable. Try this way, although the negative sign will soon be changed upon squareing.
\n" ); document.write( " $\"%28%28-1%29%283%2Bsqrt%28-7%29%29%29%5E2\"$ , reverse of distributive property to factorize neg. 1.
\n" ); document.write( " $\"1%2A%283%2Bsqrt%28-7%29%29%5E2\"$
\n" ); document.write( "From here, you must understand distributive property;
\n" ); document.write( " $\"3%5E2%2B3sqrt%28-7%29%2B3sqrt%28-7%29%2B%28-7%29\"$
\n" ); document.write( " $\"9%2B2%2A3sqrt%28-7%29-7\"$
\n" ); document.write( " $\"highlight%282%2B6sqrt%28-7%29%29\"$
\n" ); document.write( "You might leave the result in that form, or you might use the imaginary number $\"i=sqrt%28-1%29\"$ and say
\n" ); document.write( " $\"highlight%282%2B6i%2Asqrt%287%29%29\"$ . \n" ); document.write( "

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