Question

Factor the expression. d2 – 4d + 4

(d + 2)2

(d – 4)(d – 1)

(d – 2)2

(d – 2)(d + 2)

Answer 1

(D+2)2
Because d2 is just 2*d so it’s 2d-4d+4 subtract 2d from 4d and you get (2d+4) and you can factor out a 2 from that 2(d+2)