If p-q = -8 , pq = -12 , then find the value of p3 - q3 pls only answers
Answers
Answered by
2
Answer:
The answer is -224.
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Answered by
1
Answer:
the answer is -224
Step-by-step explanation:
this question has 2 parts and by solving those we get same answer
the explanation is: p-q = -8
= p = -8+q ........ (i)
pq = -12 .......... (put here i)
= (-8+q)q = -12
= -8q + q² = -12
= q² -8q + 12 = 0
solve using SHRIDHARACHARYA'S quadratic formula, and you will get
q = (8±√16)/2
by solving further you will get the value of q, put it in (i)
and. you will get the value of p³-q³ same in both the cases it's -224
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