Find the number of roots for the following equation.
7x^4+19x^3-x^2+5x+5=0
To find the number of roots for the equation, we can use the Fundamental Theorem of Algebra. According to this theorem, a polynomial equation of degree n will have exactly n roots.
In this case, the equation is a fourth degree polynomial, so it can have up to 4 roots. Therefore, the number of roots for the equation is 4.