Question

if P + Q is equal to 12 and PQ - 22, then find p square + Q square and p square minus Q square ​

Answer 1

Answer:

Step-by-step explanation:

P+Q=12

PQ=22

P²+Q²=?

P²-Q²=?

Now as P+Q=12

Squaring both sides:-

(P+Q)²=12²

P²+Q²+2PQ=144

P²+Q²+2(22)=144

[PQ=22]

P²+Q²+44=144

P²+Q²=144-44

P²+Q²=100

Hence P²+Q²=100

Now to find P²-Q²

Value of P-Q should be given

according to me.

Hope this helps