Which expression is equivalent to 45+27

a.) 9(5x3)
b.) 9(5+3)
c.) (9x5)x(9x3)
d.) (9+5)x(9+3)

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Precalculus question, image attached.

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2