Question

Math Check Please
f(x)=x^2-2x-1 find f(2t-1)

f(2t-1)= (2t-1)^2 - 2(2t-1)-1
4t^2+1 - 4t+2-1
= 4t^2-4t+2

Answer 1

(2t-1)^(2)-2(2t-1)-1

(4t^(2)-4t+1)-2(2t-1)-1

(4t^(2)-4t+1)-4t+2-1

4t^(2)-8t+2

Answer 2

Thanks

Answer 3

welcome