∪ = { ˣ⁄ x ∈ N, x ≤ 7 } , A = { ˣ⁄ x ∈ N, 1 ≤ x ≤ 4 } y B = { ˣ⁄ x ∈ N, 6 < x < 8 } Hallar: ∪ , A ∩ ,C BA ,C AB , Ac , Bc
, A – B , B – A y A Δ

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Can someone me and plz do the problem

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.