If p-q = 9 and pq= 36 evaluate p+q
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Answer:
Step-by-step explanation:
GIVEN :
P-Q = 9
P = 9+Q
PQ = 36
(9+Q)Q= 36
9Q +Q²-36 = 0
Q²+9Q -36 = 0
PRODUCT = -36
SUM = 9
NUMBERS 12,-3
Q²-3Q +12Q -36 =0
Q (Q-3)+12(Q-3) =0
(Q-3)(Q+12) =0
Q = +3 OR Q = -12
WHEN Q = -3
P = 9-3
P = 6
THAT IS P+Q = 6+-3
= 3
WHEN Q = -12
P = 9-12
P = -3
P+Q = -3-12
= -15.
HOPE THIS HELPS.
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