document.write( "Question 274505: The squares of three consecutive odd numbers total 8 more than nine times the sum of the three numbers. Find the numbers? \n" ); document.write( "
Algebra.Com's Answer #200348 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! Let x, x+2 & x+4 be the 3 odd numbers. \n" ); document.write( "x^2+(x+2)^2+(x+4)^2=9(x+x+2+x+4)+8 \n" ); document.write( "x^2+x^2+4x+4+x^2+8x+16=9(3x+6)+8 \n" ); document.write( "3x^2+12x+20=27x+54+8 \n" ); document.write( "3x^2+12x-27x+20-54-8=0 \n" ); document.write( "3x^2-15x-42=0 \n" ); document.write( "3(x^2-5x-14)=0 \n" ); document.write( "3(x-7)(x+2)=0 \n" ); document.write( "x-7=0 \n" ); document.write( "x=7 ans. \n" ); document.write( "x+2=0 \n" ); document.write( "x=-2 ans. \n" ); document.write( "Proof: \n" ); document.write( "7^2+9^2+11^2=9(7+9+11)+8 \n" ); document.write( "49+81+121=9*27+8 \n" ); document.write( "251=243+8 \n" ); document.write( "251=251 \n" ); document.write( "-2^2+0^2+2^2=9(-2+0+2)+8 \n" ); document.write( "4+0+4=9*0+8 \n" ); document.write( "8=8 \n" ); document.write( " |