Need some help please.?

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  • 3 weeks ago

    1.93 x 10^(-2)  = x² /(0.352 - x)

    Convert to decimals

    .0193 = x² /(0.352 - x)

    Multiply both sides by 0.352 - x

    0.0067936 - .0193x = x² 

    Add .0193 to both sides

    0.0067936 = x²  + .0193x

    x² + .0193x = 0.0067936

    Solve with complete the square (or quadratic formula)

    (x + 0.00965)² = 0.0067936 + 0.00965² 

    (x + 0.00965)² = 0.0068867225

    Take the square root of both sides

    x + 0.00965 = ±0.08298627899

    Subtract 0.00965 from both sides

    x = - 0.00965 ± 0.08298627899

    x = -0.09263627899 ≈ -0.0926 <–––––

    x = 0.07333627899 ≈ 0.0733 <––––––

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