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3 votes
Is this the correct solution for this question? I need help please

Is this the correct solution for this question? I need help please-example-1

1 Answer

3 votes

Given equation:


9x^2\text{ - 12x + 4 = 0}

Let's solve the question to identify the type of solution.

Using factorization method:


\begin{gathered} 9x^2\text{ - 12x + 4 =0} \\ 9x^2-6x\text{ -6x + 4 = 0} \\ 3x(3x-2)\text{ -2(3x-2)= 0} \\ (3x-2)(3x-2)\text{ =0} \end{gathered}

The solution is thus


\begin{gathered} 3x\text{ -2 = 0} \\ 3x\text{ = 2} \\ x\text{ = }(2)/(3) \end{gathered}

Hence, there is one solution and it is real.

Answer: 1 real (Option B)

User Christer Fahlgren
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