Answer:
A) 1.3t³+t²-42t+8
Step-by-step explanation:
Align your polynomial so the like terms are with each other, and simply combine them
Answer:
![\displaystyle [8, -2]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5B8%2C%20-2%5D)
Step-by-step explanation:
2x - 18 = x - 10
−8 = −x
[Plug this back into both equations above to get the y-coordinate of −2]; 
I am joyous to assist you anytime.
The coefficients of x4 is 9. It has factors of 1, 3, and 9. The constant is 4. It has factors of 1, 2, and 4.
The (positive and negative) ratios of the factors of the coefficient of the x4 and the constant 4 are the potential rational roots of the function.
The answers are:
1, -1, 3, -3, 9, -9, 1/2, -1/2, 3/2, -3/2, 3/4, -3/4, 9/2, -9/2, 9/4, -9/4
Finding the slope and adding up values gives an answer of 45.
The equation of this parabola will have the form f(x) = a(x+5)(x-4), which works out to f(x) = a(x^2 + x - 20). Since the parabola passes thru (3,40),
40 = a(3^2 + 3 - 20), or 40 = a(-8), so a = -5.
Thus, the equation of this parabola is y = -5(x^2 + x - 20).
