Solve 36x2−64=0 using the difference of squares pattern.(1 point) Responses x=−43 x equals negative Start Fraction 4 over 3 End Fraction x=43 and x=−43 x equals Start Fraction 4 over 3 End Fraction and x equals negative Start Fraction 4 over 3 End Fraction x=43 x equals Start Fraction 4 over 3 End Fraction x=−83 and x=83

1 answer

To solve the equation \(36x^2 - 64 = 0\) using the difference of squares pattern, let's first rewrite the equation in a recognizable form.

  1. Notice that the expression \(36x^2 - 64\) can be factored as a difference of squares: \[ 36x^2 - 64 = (6x)^2 - (8)^2 \]

  2. We can then apply the difference of squares formula, which is \(a^2 - b^2 = (a - b)(a + b)\), where \(a = 6x\) and \(b = 8\): \[ (6x - 8)(6x + 8) = 0 \]

  3. This gives us two equations to solve: \[ 6x - 8 = 0 \quad \text{and} \quad 6x + 8 = 0 \]

  4. Solving the first equation: \[ 6x - 8 = 0 \implies 6x = 8 \implies x = \frac{8}{6} = \frac{4}{3} \]

  5. Solving the second equation: \[ 6x + 8 = 0 \implies 6x = -8 \implies x = \frac{-8}{6} = -\frac{4}{3} \]

Thus, the solutions to the equation \(36x^2 - 64 = 0\) are: \[ x = \frac{4}{3} \quad \text{and} \quad x = -\frac{4}{3} \]

So the correct response is: x equals \(\frac{4}{3}\) and x equals negative \(\frac{4}{3}\).