Ten less than 3 times a number is the same as the number plus 4 as an equation

The $x$-intercepts of the parabola $y = x^2 + bx + c$ are $(-3,0)$ and $(5,0).$ find the equation of the parabola, and submit your answer in $y = ax^2 + bx + c$ form.

What is 20+(5 x 2/5 )+ 3 show your work

Can someone me i’m confused. will give brainliest and a whole bunch of points