First we need to write the factors of the polynomial. In order for 1, 4, and -3 to be roots, they need to be the x values that make the polynomial equal 0.
(x - 1) = 0
That would be the factor for x = 1 because when we plug 1 in for x we get 1 - 1 which equals 0.
Multiply all the factors together.
(x-1)(x-4)(x+3)=0
Now FOIL.

Answer:See below and attached
Step-by-step explanation:
Given numbers
4.2×10^-6, 2.1×10^-3, 3.1×10^-2, 3.2×10^-5, 3.5×10^-4, 5.8×10^-3, 5.2×10^-4
Greater than 3.1×10^-3
3.1×10^-2, 5.8×10^-3
Between 3.1 × 10^-3 and 4.3 × 10^-5
2.1×10 ^-3, 3.5×10^-4, 5.2×10^-4
Less than 4.3 × 10^-5
4.2×10^-6, 3.2×10^-5
Step-by-step explanation
:
C. -5.4 -17.6+12.2= -5.4 because -17.6 goes first in the calculator but also its a negative
70.59 is 363.846154% of 19.5.