Question

sendo f (x)= -2x-2, determine o valor de f (-1) + 3.f (2)
ajudem por favor!!!!

Answer 1

$f(x)=-2x-2\\\\\\ f(-1)=-2(-1)-2\\\\ f(-1)=2-2\\\\ f(-1)=0\\\\\\ f(2)=-2(2)-2\\\\ f(2)=-4-2\\\\ f(2)=-6\\\\\\ f(-1)+3f(2)\\\\ 0+3(-6)\\\\ -18$