Step-by-step explanation:
a) (t – 2)(t – 2)
(t-2)²
t²-2×t×2+2²
t²-4t+4
b). (3y – 2z) (3y + 2z)
(3y)²-(2z)²
9y²-4z²
c) 105 × 98
10,290
Answer:
no clue -0- if I knew I would tell you
69.08 yd
