if p=7, q=5, r=3, find the value of p2+2q2-r2​

Question

if p=7, q=5, r=3, find the value of p2+2q2-r2​

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Arya 2 months 2021-10-10T12:56:14+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-10T12:57:40+00:00

    Answer:hlo

    Step-by-step explanation:

    7(2)+2(5)2-3(2)

    14+20-6

    34-6

    28

    0
    2021-10-10T12:58:00+00:00

    Answer: 90

    Step-by-step explanation:

    p^{2} + 2q^{2} - r^{2}

    = 7^{2} + 2\times5^{2} - 3^{2}

    = 49 + 2\times25 - 9

    = 49 + 50 - 9

    = 99 -9

    = 90

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