Многострочное текстовое поле

from tkinter import *
from math import *
root = Tk()
root.title("Функция")
 
root.geometry('330x290')
##########################
def mda():
    global x
    global k
    global y
    h = int(t3.get())
    x = int(t1.get())
    b = int(t2.get())
    while x <= b:
        y = x**4 - 14*x**2 - 40*x - 75
 
        text.insert(1.0, y)
        x = x + h
 
 
def clear():
   t1.delete(0,END)
   t2.delete(0,END)
   t3.delete(0,END)
   text.delete(0.0,END)
################################
text = Text(width=27, height=7,  wrap=WORD)
text.place(x=5, y=165)
 
 
l5 = Label(root, text="А:")
l5.place(x=10, y=100)
 
t1 = Entry(root, width=10)
t1.place(x=55, y=100)
 
l6 = Label(root, text="В:")
l6.place(x=150, y=100)
 
t2 = Entry(root, width=10)
t2.place(x=195, y=100)
 
l1 = Label(root, text="Значения функции x^4-14x^2-40x-75", font=("Comic Sans MS", 12))
l1.place(x=18, y=5)
 
l2 = Label(root, text="на отрезке [a,b] с шагом h", font=("Comic Sans MS", 12, "bold"))
l2.place(x=45, y=30)
 
l3 = Label(root, text="Задайте границы отрезка [a,b]:")
l3.place(x=80, y=62)
 
l7 = Label(root, text="Задайте шаг:")
l7.place(x=10, y=130)
t3 = Entry(root, width=10)
t3.place(x=100, y=130)
 
b1 = Button(root, text="Решение", command=mda)
b1.place(x=240, y=180, width=80)
 
b2 = Button(root, text="Очистить", command=clear)
b2.place(x=240, y=230, width=80)
 
root.mainloop()