document.write( "Question 105217: i have been working on the problem and not figuring out where they got there answer if someone could explain it to me...... (3x+7)exponent of 2 outside of () \n" ); document.write( "
Algebra.Com's Answer #76579 by edjones(8007)\"\" \"About 
You can put this solution on YOUR website!
(3x+7)^2=(3x+7)(3x+7)=9x^2+42x+49
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