Solve the following quadratic equation using square roots: (x−18)^2=196

.(1 point)
Responses

{214,−178}
left brace 214 comma negative 178 right brace

​ {−4,−32}
​ left brace negative 4 comma negative 32 right brace

{32,4}
left brace 32 comma 4 right brace

{21,5}

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
1 hour ago

To solve the quadratic equation \((x−18)^2 = 196\) using square roots, we can follow these steps:

  1. Take the square root of both sides: \[ x - 18 = \pm \sqrt{196} \]

  2. Calculate \(\sqrt{196}\): \[ \sqrt{196} = 14 \]

  3. This gives us two equations: \[ x - 18 = 14 \quad \text{and} \quad x - 18 = -14 \]

  4. Solve for \(x\) in each case:

    • For \(x - 18 = 14\): \[ x = 14 + 18 = 32 \]
    • For \(x - 18 = -14\): \[ x = -14 + 18 = 4 \]
  5. Thus, the solutions are: \[ x = 32 \quad \text{and} \quad x = 4 \]

So, the solutions to the original equation are \({32, 4}\).

The correct response from your options is: {32, 4}.