document.write( "Question 237296: write the quadratic f(x)=2x^2+8x-2 in standard form. I got f(x)=(2x^2+4)-4-2, do I go further? \n" ); document.write( "
Algebra.Com's Answer #174510 by edjones(8007)![]() ![]() You can put this solution on YOUR website! f(x)=a(x-h)^2+k The standard form. The vertex=(h,k) \n" ); document.write( "f(x)=2x^2+8x-2 \n" ); document.write( "=2(x^2+4x)-2 \n" ); document.write( "=2(x^2+4x+4-4)-2 complete the square of 4 by dividing it by 2 and squaring it by 2 which gives 4 and adding -4 so the statement stays the same. \n" ); document.write( "=2(x^2+4x+4)-2(4)-2 \n" ); document.write( "=2(x+2)^2-10 The standard form. The vertex=(-2,-10) \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( ". \n" ); document.write( " |