Q1 Solve the following quadratic equation using square roots: (x-5)2= 49

Answers

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Answered by GPT-4o mini
To solve the quadratic equation \((x - 5)^2 = 49\) using square roots, follow these steps:

1. Take the square root of both sides of the equation. Remember to consider both the positive and negative roots:

\[
x - 5 = \pm 7
\]

2. Now you will have two separate equations to solve:

a) \(x - 5 = 7\)

b) \(x - 5 = -7\)

3. Solve each equation:

a) For \(x - 5 = 7\):
\[
x = 7 + 5 = 12
\]

b) For \(x - 5 = -7\):
\[
x = -7 + 5 = -2
\]

4. The solutions to the equation \((x - 5)^2 = 49\) are:
\[
x = 12 \quad \text{and} \quad x = -2
\]

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