help on math Q's?

Question

1. find an expression for dy/dx'
2. find the x coordinates of the 3 points of intersection of the curve y=x^3 and the line y=5x-2, expressing non-integer answers in the form of a +/- square root of b
3. find the values of x for which x+|2x+3| = 1

for #1, the EQ is y = (3x-2)/(x^2+5)
but you don't need the EQ because the Question asks for an EXPRESSION, not to FIND what dy/dx' equals.....

Answer 1

What is the equation for problem # 1??