__ If you can solve these i am very grateful. I am very bad at math. I tried to translate them in English from my language. Really hope you can understand what i mean.__

1. What is the minimum value of function x^2 - 2^x + 1

2. what x values make function f(x) = 4x2 – 2x – 2 positive values?

3.

define the point of line 3x + 5y = 7, which is closest to the origin.

4. define the equation of line, which is normal of line y = -3x + 2 and goes through the point (6, 8)

5. Solve the following equations using logarithms to two decimal places.

a)=8 x120

b) 4∙12x= 40

c) 7-2x -20 =0

thank you very very much!!!!