Question

Sendo F(x)=x²+3x-10.determine:
(por favor me ajudem❤️❤️).
A)F(3)
B)F(1)
C)F(3)+F(-3)
D) F=(0)​

Answer 1

a)

f(3) = 3² + 3 × 3 - 10

f(3) = 9 + 9 - 10

f(3) = 18 - 10

f(3) = 8

b)

f(1) = 1² + 3 × 1 - 10

f(1) = 1 + 3 - 10

f(1) = 4 - 10

f(1) = -6

c)

f(3) = 8

f(-3) = (-3)² + 3 × (-3) - 10

f(-3) = 9 - 9 - 10

f(-3) = -10

f(3) + f(-3) = 8 + (-10) = 8 - 10 = -2

d)

f(0) = 0² + 3 × 0 - 10

f(0) = -10