solve the following quadratic equation by factorisation method r2-49=0​

Question

solve the following quadratic equation by factorisation method r2-49=0​

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Alaia 2 months 2021-11-28T13:22:46+00:00 1 Answer 0 views 0

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    2021-11-28T13:24:18+00:00

    Answer:

    Given that,

    ⟹ \:  {r}^{2}   -49 \:  =  \: 0 \\ ⟹ \:  {r}^{2}  = 0  \:  -  \: 49 \\ ⟹ \:  {r}^{2}  =  \: 49 \\ ⟹ \: r \:  =  \:  \sqrt{49}  \\ ⟹ \: r \:  =  \: ±7

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    Step-by-step explanation:

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