F(x)= −2x^2 + 8x − 10
{Find } f(-4)

Need on this one asap im almost done with this subject

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9