When x= 0.3 solve equation

Question

x^3/0.9+4x+(7-4)

Answer 1

To solve the equation given \( x = 0.3 \), we will substitute \( x \) into the expression you provided:

\[ \frac{x^3}{0.9} + 4x + (7 - 4) \]

Now substituting \( x = 0.3 \):

1. Calculate \( x^3 \): \[ x^3 = (0.3)^3 = 0.027 \]

2. Calculate \( \frac{x^3}{0.9} \): \[ \frac{0.027}{0.9} = 0.03 \]

3. Now calculate \( 4x \): \[ 4x = 4 \cdot 0.3 = 1.2 \]

4. Calculate \( 7 - 4 \): \[ 7 - 4 = 3 \]

Now, we will combine all these results together: \[ \frac{x^3}{0.9} + 4x + (7 - 4) = 0.03 + 1.2 + 3 \]

Now, perform the addition: \[ 0.03 + 1.2 = 1.23 \] \[ 1.23 + 3 = 4.23 \]

Thus, the solution to the equation when \( x = 0.3 \) is: \[ 4.23 \]