What is the solution of the equation x² = 64? 4 +4 18

Question

What is the solution of the equation x² = 64?
4
+4
18

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Phúc Điền 3 years 2021-09-05T14:55:27+00:00 1 Answers 12 views 0

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  1. thuhuong
    0
    2021-09-05T14:56:30+00:00
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    \implies {\blue {\boxed {\boxed {\purple {\sf { \: x = ±8}}}}}}

    \large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

    ➺ {x}^{2} = 64

    ➺ \: x = \sqrt{64}

    ➺ \: x = \sqrt{8 \times 8}

    ➺ \: x = \sqrt{ ({8})^{2} }

    ➺ \: x = ±8

    \large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )