tolong bantuannya masterrr

f(x) = x^2 + 3x -1
f(x+h) = (x+h)^2 +3(x+h) -1 = x^2+2hx+h^2 +3x+3h -1

f'(x)
= lim h->0 f(x+h) -f(x) / h
= lim h->0 x^2+2hx+h^2 +3x+3h -1 -(x^2 +3x -1) / h
= lim h->0 x^2+2hx+h^2 +3x+3h -1 -x^2 -3x +1 / h
= lim h->0 2hx+h^2+3h / h
= lim h->0 h(2x+h+3) / h
= lim h->0 2x+h+3
= 2x+0+3
= 2x+3

atau cara lainnya adalah:
f(x) = x^2 +3x -1
f'(x) = 1.2 x^2-1 +3.1 x^1-1 -0 = 2 x^1 +3 x^0 = 2x +3 (1) = 2x+3

semoga membantu.
mohon maaf itu yg di foto hanya sbg contoh saja bukan jawabannya.