document.write( "Question 1130362: The ages of three children in a family can be expressed as consecutive integers. The square of the age of the youngest child is 4 more than 8 times the age of the oldest child. Find the ages of the three children \n" ); document.write( "
Algebra.Com's Answer #747027 by addingup(3677)![]() ![]() You can put this solution on YOUR website! youngest: x \n" ); document.write( "middle : x+1 \n" ); document.write( "oldest: x+2 \n" ); document.write( "x^2 = 8(x+2)+4 \n" ); document.write( "x^2 = 8x + 16 + 4 \n" ); document.write( "x^2 = 8x + 20 \n" ); document.write( "x^2 - 8x = 20 \n" ); document.write( "x^2 - 8x - 20 = 0 \n" ); document.write( "(x−10)(x+2)=0 \n" ); document.write( "x-10 = 0 or x+2 = 0 \n" ); document.write( "x = 10 or x = -2 \n" ); document.write( "Let's try the 10: \n" ); document.write( "x^2 = 8(x+2)+4 \n" ); document.write( "10^2 = 8(10+2}+4 \n" ); document.write( "100 = 80+16+4 Correct, this is your answer \n" ); document.write( "The youngest is 10 \n" ); document.write( "The middle is 10+1 = 11 \n" ); document.write( "The oldest is 10+2 = 12\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |