Pls Answer 1. Show that (a+bi)^2 = (a+b)(a−b) + 2abi

2. Show that (2x+i)(2x−i) = 4x2 +1

3. Show that (1+i)2 = 2i

do you want me to solve for a or b?

Step-by-step explanation:

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

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.