Answer:
[tex]3x^2 - 21[/tex] (did you mean for the equation to be [tex](5 - x^2 + 2) \cdot -3[/tex]?)
Step-by-step explanation:
Multiplying -3 by each term:
[tex]-3 \cdot 5 = -15[/tex]
[tex]-x^2 \cdot -3 = 3x^2[/tex]
[tex]-3 \cdot 2 = -6[/tex]
[tex]-15-6 = -21[/tex]
So the equation comes out to [tex]3x^2 - 21[/tex] .
Hope this helped!
