It is A because opposite of angle 27 degrees is the same angle if you see
They show the decomposition of a multiplication expression into smaller parts
=-35(4s-t)+21(4s-t)
=-140s+35t+84s-21t
=-140s+84s+35t-21t
=-56s+14t
Without knowing what Faelyn has done so far or what she is working with, the second selection seems appropriate.
6x^4 -5x^2 -4
= (6x^4 +3x^2) -(8x^2 +4)
= 3x^2*(2x^2 +1) -4(2x^2 +1)
= (3x^2 -4)(2x^2 +1)
