Question 416579
According to what you posted, there are no parentheses so I interpret it as {{{f(x) = -2x^2 + 6}}}, i.e. you square the value of x, multiply it by -2, then add 6, by the order of operations. Here, {{{f(-3) = -2(-3)^2 + 6 = -18 + 6 = -12}}}.