Value of x. Urgent (pls give explanation for the first part no need for x -3)

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

it is x equals 3   plese mark me really need it

step-by-step explanation:

pls refer ro the top for answer

6 equilateral triangles