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kow [346]
4 years ago
15

(2x-3)^2=81

Mathematics
1 answer:
tia_tia [17]4 years ago
5 0

Answer:

putting roots on both sides,

<em><u>\sqrt{(2x - 3)}  {}^{2}  =  \sqrt{81}</u></em>

<em><u>o</u></em><em><u>r</u></em><em><u>,</u></em><em><u> </u></em><em><u>2</u></em><em><u>x</u></em><em><u>-</u></em><em><u>3</u></em><em><u> </u></em><em><u>=</u></em><em><u>9</u></em>

<em><u>o</u></em><em><u>r</u></em><em><u>,</u></em><em><u> </u></em><em><u>2</u></em><em><u>x</u></em><em><u>=</u></em><em><u> </u></em><em><u>9</u></em><em><u>+</u></em><em><u>3</u></em>

<em><u> </u></em><em><u>o</u></em><em><u>r</u></em><em><u>,</u></em><em><u> </u></em><em><u>2</u></em><em><u>x</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>1</u></em><em><u>2</u></em>

<em><u>O</u></em><em><u>r</u></em><em><u>,</u></em><em><u> </u></em><em><u>x</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>1</u></em><em><u>2</u></em><em><u>÷</u></em><em><u>2</u></em>

<em><u>:</u></em><em><u>.</u></em><em><u> </u></em><em><u>x</u></em><em><u>=</u></em><em><u>6</u></em>

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