Multi
expand.
if necessary, combine like terms.
(2 + x)(2-x)

−x²+4

Explanation:

(2+x)(2−x)

=(2+x)(2+−x)

=(2)(2)+(2)(−x)+(x)(2)+(x)(−x)

=4−2x+2x−x2

−x²+4

i believe that the answer is

b. y-1=-2(x-4)

hope this !