Answer:



Step-by-step explanation:
Given

Required
Select 3 equivalent expressions

Express 9 as 3^2
--- This is one equivalent expression
Take
as difference of two squares
-- This is another equivalent expression:
Solving further:
becomes
-- This is another equivalent expression:
Hence, the equivalent expressions are:



Step-by-step explanation:
If they have the same shape, the red graph is a translation of the blue, which is given to be y=x^2.
Since the red graph stays on the y axis at two units above the blue (y=x^2) curve, therefore the red curve is given by y=x^2+2.
48.72 is number 12 if that is what your asking for
(x-4)(x-3)
FOIL to check
x² -3x -4x +12
x² -7x +12