I’ll mark brainliest if you can write the proofs using the given!

Explanation:

triangles GDB and GEC are equal because they both use point G as a point in the triangle and they are both perpendicular bisectors of lines AB and AC. Because lines AB and AC are equal, it causes these two triangles to be congruent.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3