Write the general form of a quadratic polynomial
ax2 + bx + c or bx + ax2+ c or c+ bx + ax2
ax2 + bx + c where a, b and c are real numbers
ax2 + bx + c = 0
ax2 + bx + c where a, b and c are real numbers and a is not equal to zero
ax2 + bx + c where a, b and c are real numbers and a is not equal to zero.