yamileth272003
yamileth272003 yamileth272003
  • 23-11-2020
  • Mathematics
contestada

What would this be ?

What would this be class=

Respuesta :

jimthompson5910 jimthompson5910
  • 23-11-2020

Answer:  25

==============================================

Explanation:

If f(x) is an even function, then,

f(-x) = f(x)

for all x in the domain

Based on that, we can say f(-3) = f(3)

So,

y = -2*f(3) - 3*f(-3)

y = -2*f(3) - 3*f(3)

y = -2*(-5) - 3*(-5)

y = 10 + 15

y = 25

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