Question

IF p+q=4 , p-q=2 find p^2+q^2
Those who will answer it right will be marked as the brainliest​

Answer 1

Answer:

$p + q = 4 \\ p - q = 2 \\ {}^{ + } \: \: {}^{ - } \: \: \: \: \: \: {}^{ + } \\ = = = = = = \\2 p = 8 \\ p = 4 \\ \\ p - q = 2 \\ 4 - q = 2 \\ \\ 4 - 2 = q \\ \\ q = 2 \\ \\ \\ {p}^{2} + {q}^{2} = {4}^{2} + {2}^{2} = > 16 + 4 = 20$

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Answer 2

Answer:

${p}^{2 } + {q}^{2} = 10$

Step-by-step explanation:

solving p+q =4 and p-q=2

we get q=3

hence we could find p which is +-1 (means plus or minus 1