Respuesta :

Using the FOIL Method (First, Outer, Inner, Last) of multiplying binomials, C would be formed by the last numbers multiplied, or the "last" portion of "FOIL."

Thus, multiplying P and Q would give you C, and the answer is A.
for the function
ax^2 + bx + c

c /a = pq  if p and q are the zeros  of the function

for our function the zeroes are -p and -q  so -p*-q = pq = c/1 = c

so the first choice is correct

also -q + -p  = -b/a  =  -b

so b = -(-q-p) = p + q

so the last choice is true also.