x^2 + x whats the constant term
This expression (not equation, since an equation requires an equal sign with something on each side) is a quadratic (second degree polynomial).
The quadratic is in standard form:
ax2 + bx + c
Since you don't see a number written before x2 or x, their coefficients (a & b) are 1
Since you do not see anything written for the c (constant) term, it is 0
The constant term in the expression is 0