Question

1. Calculati: f(-4) + f(4) pentru f(x) = x²-16.
2.Calculati a)3 (4-√3) + 3√3; b) 2 (5-√2) + 2√2

Answer 1

1.f(-4)= (-4)^2 -16=0
f(4)= 4^2-16=0
f(-4)+f(4)=0
2. a)12-3*3^1/2+3*3^1/2=12
b)10-2*2^1/2+2*2^1/2=10