Simplify.
(14h⁴︎+3h³) - (9h⁴︎+2h³)

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

The sides of a parallelogram are 24cm and 16cm. the distance between the 24cm sides is 8 cm. find the distance between the 16cm sides

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm