Question

Dada a funçao f: IR IR, f(x)= x²+7x+10, calcule:
a) f(-1)
b) f(-2)
c) f(-3)
d) f(-5)

Answer 1

  x²+7x+10, calcule:

a) f(-1)= (-1)²+7(-1)+10= 1-7+10= 4
b) f(-2)= (-2)²+7(-2)+10=4-14+10= 0
c) f(-3)= (-3)²+7(-3)+10=9-21+10= - 2
d) f(-5)= (-5)²+7(-5)+10=25-35+10= 0