Question

100pts QUESTION
HELLO MATE ✌ ✌✌ ✌

see this and attachment and answer me please
QUALITY CONTENT ANSWER NEED.​

Answer 1

$\huge{\underline {\underline {\green{Answer}}}}$

Refer to the given attachment

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Answer 2

$\huge\underline\purple{\sf Answer}$

$1) \: p {}^{2} + q {}^{2} - r { }^{2} \\ \\ = ( - 2) {}^{2} + ( - 1) {}^{2} - (3) {}^{2} \\ \\ = 4 + 1 - 9 \\ \\ = 5 - 9 \\ \\ = - 4$

$2) \: 2p {}^{2} - q {}^{2} + 3r {}^{2} \\ \\ = 2 \times ( - 2) {}^{2} - ( - 1) {}^{2} + 3 \times (3) {}^{2} \\ \\ = 8 - 1 + 27 \\ \\ = 35 - 1 \\ \\ = 34$

$3)p - q - r \\ \\ = ( - 2) - ( - 1) - 3 \\ \\ = - 2 + 1 - 3 \\ \\ = - 5 + 1 \\ \\ = - 4$

$4) \: p {}^{3} + q {}^{3} + r {}^{3} + 3pqr \\ \\ = ( - 2 ) {}^{3} + ( - 1) {}^{3} + (3) {}^{3} + 3( - 2)( - 1)3 \\ \\ = - 8 + 1 + 27 + 18 \\ \\ = 45 - 9 \\ \\ = 36$

$5)3p {}^{2} q + 5pq {}^{2} + 2pqr \\ \\ = 3 \times ( - 2) {}^{2} \times ( - 1) + 5( - 2)( - 1) {}^{2} + 2 \times ( - 2) (1)(3) \\ \\ = - 12 - 10 - 12 \\ \\ = - 34$

$6)p {}^{4} + q {}^{4} - r {}^{4} \\ \\ = ( - 2) {}^{4} + ( - 1) {}^{4} - (3 {}^{4} \\ \\ = 16 + 1 + 81 \\ \\ = 98$

$\huge\underline\blue{\sf Thank you }$