y=2x^2-28x+102 first, make value of coefient in front of x^2 term 1 factor out 2 from x^2 and x term y=2(x^2-14x)+102 compete the square (take 1/2 of b and square it and add to inside of parenthasees, add negative an possitive to basicaly add zero -14/2=-7 (-7)^2=49
y=2(x^2-14x+49-49)+102 complete the square y=2((x-7)^2-49)+102 distribute y=2(x-7)^2-98+102 y=2(x-7)^2+4