He polynomial p(x) = x5 − 9x4 13x3 57x2 − 86x − 120 has a total of zeroes. it can have a maximum of positive real roots and a maximum of negative real roots

The polynomial p(x) = x5 − 9x4 + 13x3 + 57x2 − 86x − 120 has a total of  

5

zeroes. It can have a maximum of  

5

positive real roots and a maximum of  

4

negative real roots.

you're welcome

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

probably .5

i can on others if necessary.