Question

if PQ barabar 8 and p + q barabar 6 then the value of (P square + q square) is _.​

Answer 1

Answer:

p-q =6 and p+q=14....(i) consider,

(p+q)²=(p-q)²+4pq

14² =6²+4pq

196=36+4pq

4pq=160

pq =40....(ii)

(p+q)²=p²+q²+2pq

14²=p²+q²+2×40. from (i)and (ii)

p²+p²=196-80=116

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

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