(color{gray}x^{color{black}4})
(color{blue}[)
(color{blue}])
(color{black}()
(color{black}))
(color{blue}/)
(color{gray}x^{color{black}3})
(color{gray}x^{color{black}y})
(sqrt)
(sqrt[3])
(color{blue} imes)
(color{gray}x^{color{black}2})
(color{black}7)
(color{black}8)
(color{black}9)
(color{blue}-)
(color{reddish}r)
(color{black}4)
(color{black}5)
(color{black}6)
(color{blue}+)
(color{reddish}y)
(color{black}1)
(color{black}2)
(color{black}3)
(color{black}pi)
(color{reddish}x)
(color{black}0)
(color{black}.)
(color{black},)
(color{black}e)