### 1 Answer

Relevance

- MichaelLv 71 month 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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