Which equation is quadratic in form? 4(x-2)^2+3x-2+1=0 8x^5+4x^3+1=0 10x^8+7x^4+1=0 9x^16+6x^4+1=0

The equation that is quadratic in form is:<br /><br />$4(x-2)^{2}+3x-2+1=0$<br /><br />This equation can be rewritten as:<br /><br />$4(x^2 - 4x + 4) + 3x - 2 + 1 = 0$<br /><br />$4x^2 - 16x + 16 + 3x - 2 + 1 = 0$<br /><br />$4x^2 - 13x + 15 = 0$<br /><br />This is a quadratic equation in the form $ax^2 + bx + c = 0$, where $a = 4$, $b = -13$, and $c = 15$.