convert f(x)=x^2+4x+1 to vertex form and identify the transformation from the parent function f(x)=x^2

What statement is true? 2x^2-9x+2=-1

What is the inverse of the function f(x) = 2x + 1?

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle