Can someone pls help me.

Using the completing-the-square method, find the vertex of the function f(x) = 2x2 − 8x + 6 and indicate whether it is a minimum or a maximum and at what point. maximum at (2, –2) minimum at (2, –2) maximum at (2, 6) minimum at (2, 6)

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

What else equals 42 and 30 for multiply