helppp.........................

f(-x)² = (1/ ((-x) - 2)²)²
        = 1/ ((-x) - 2)⁴

f(x²-1) = 1 / (x²-1-2)
          = 1/(x²-3)

Lim     x² + 7x + 10 / (x+2)²(x-1)
x→ -3
Lim    (x+2)(x+5) / (x+2)²(x-1)
x → -3
Lim   (x+5) / (x+2)(x-1)
x → -3
= (-3+5) / (-3+2)(-3-1)
= 2 / (-1)(-4)
= 2/4
= 1/2