document.write( "Question 317280: b is the midpoint of ac. prove ab + cd = ab \n" ); document.write( "
Algebra.Com's Answer #227138 by JBarnum(2146)\"\" \"About 
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this doesnt make much since seeing how we dont know where d is and the only way to make it =ab is for cd=0 ? \n" ); document.write( "
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