Question

If p- q = 5, p + q = 13 then p2 + q2 =
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Answer 1

Answer:

The answer is 194...........

Answer 2

Question -:

$p - q = 5 \: and \: p + q = 13$

then

${p}^{2} + {q}^{2}$

firstly let us konw the formula of

${p}^{2} + {q}^{2}$

${p}^{2} + {q}^{2} = (p + q)(p - q)$

now put the value of p + q and p-q in above formula

${p}^{2} + {q}^{2} = (p + q)(p - q)$

${p}^{2} + {q}^{2} = (5) \: (13)$

${p}^{2} + {q}^{2} = 65$

Answer = 65

Hope this will help you

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