Question

Sendo f(x)= x² + 7x +10, Calcule:
f(1)
f(2)
f(-1)
f(-3)
f(-5)

Answer 1

f(1) = 1^2+7*1+10 = 18
f(2) = 2^2+7*2+10 = 4+14+10 = 28
f(-1) = (-1)^2+7*(-1)+10 = 1-7+10 = 4
f(-3) = (-3)^2+7*(-3)+10 = 9-21+10 = -2
f(-5) = (-5)^2+(-5)*7+10 = 25-35+10 = 0