Question

f(x) = 5x³-6x²+3x+10

Find value of f'(3)..

Answer 1

Hi...

f(x) = 5x³-6x²+3x+10

f'(x) = 15x²-12x+3

Now,

f'(3) = 15(3)²-12(3)+3

f'(3) = 15×9-36+3

f'(3) = 135-33

f'(3) = 102

☺️☺️

Answer 2

f(3)=5(3)*3-6(3)*2+3(3)+10
=135-54+9+10
=100