Gina wants to estimate the total of 3 bills she has to pay the bills are for 215 115 and 138 gina wants to make sure that she has enough money .She wants the estimate to be greater than the total of the bills.Should she round to the nearest tens or hundreds explain and show answers

k = 3

Step-by-step explanation:

If p-1 is a factor of p⁴+p²+p-k, then we can express the polynomial in form

p⁴+p²+p-k = (p-1) * (ap³ + bp² + cp + d)

where a,b,c,d are constants. The important thing is that we can subst in p = 1 to make the polynomial zero. We can do this for original polynomial. WE must have to equal to 0 when we use p = 1 substitution...

1⁴+1²+1-k = 0

3 - k = 0

k = 3