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3x2+5x+4=03x^2 +5x + 4 =0

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Q. 3x2+5x+4=03x^2 +5x + 4 =0
  1. Identify coefficients: Identify the coefficients of the quadratic equation.\newlineThe quadratic equation is in the form ax2+bx+c=0ax^2 + bx + c = 0. For the equation 3x2+5x+4=03x^2 + 5x + 4 = 0, the coefficients are: a=3a = 3, b=5b = 5, and c=4c = 4.
  2. Check factorability: Check if the quadratic equation can be factored easily.\newlineIn this case, the equation 3x2+5x+43x^2 + 5x + 4 does not factor easily into two binomials. Therefore, we will use the quadratic formula to find the solutions.
  3. Write quadratic formula: Write down the quadratic formula.\newlineThe quadratic formula is x=b±b24ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}. We will use this formula to find the values of xx that satisfy the equation 3x2+5x+4=03x^2 + 5x + 4 = 0.
  4. Substitute coefficients: Substitute the coefficients into the quadratic formula.\newlineSubstitute a=3a = 3, b=5b = 5, and c=4c = 4 into the quadratic formula to get x=(5)±(5)24(3)(4)2(3)x = \frac{-(5) \pm \sqrt{(5)^2 - 4(3)(4)}}{2(3)}.
  5. Simplify and calculate discriminant: Simplify under the square root and calculate the discriminant.\newlineCalculate the discriminant (b24ac)=(5)24(3)(4)=2548=23(b^2 - 4ac) = (5)^2 - 4(3)(4) = 25 - 48 = -23.
  6. Use complex numbers: Since the discriminant is negative, the solutions will be complex numbers. We can write the solutions as x=5±236x = \frac{-5 \pm \sqrt{-23}}{6}. The square root of a negative number is an imaginary number, so we can express 23\sqrt{-23} as i23i\sqrt{23}, where ii is the imaginary unit.
  7. Write final solutions: Write the final solutions.\newlineThe solutions to the equation 3x2+5x+4=03x^2 + 5x + 4 = 0 are x=5+i236x = \frac{-5 + i\sqrt{23}}{6} and x=5i236x = \frac{-5 - i\sqrt{23}}{6}.

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