Answer:

Step-by-step explanation:
We have been given the polynomial p(x)=2x+5.
Zero of the polynomial is the x-intercept. Hence, in order to find the zero of the polynomial, we set p(x)=0
Therefore, we have
2x+5=0
Subtract 5 to both sides
2x=-5
Divide both sides by 2
x= 
Therefore, the zero of the polynomial p(x)=2x+5 is 
Answer:
17•15+(15+14)-11•16÷12= 269.3
(34+33)15-1+13-1+10= 1026
(1+4)÷20•17-31= -26.75