Can someone simplify this please

(x^3+2x^2-4)+(3x^2+6)

Will mark brainlist what is the slope of the line passing through the points (-2, -8) and (-3,-9)? -7/5-5/71-1

Acollege student takes out a $7500 loan from a bank. what will the balance of the loan be after one year(assuming the student has not made any payments yet) a. if bank charges 3.8% interest each year ?

Quadrilateral wxyz was dilated with the origin as the center of dilation to create quadrilateral w'x'y'z'. the quadrilateral was dilated using a scale factor of 2. the coordinates of the vertices of quadrilateral wxyz are given. you can use the scale factor to find the coordinates of the dilated image. enter the coordinates of the vertices of quadrilateral w'x'y'z'