25x2−1=0
To solve the equation 25x2−1=0, we'll follow these steps:
- Step 1: Rewrite the equation to isolate the quadratic term. Add 1 to both sides to get:
25x2=1
- Step 2: Eliminate the fraction by multiplying both sides by 25:
x2=25
- Step 3: Solve for x by taking the square root of both sides. Remember to consider both the positive and negative roots:
x=±25
- Step 4: Since 25=5, the solutions to the equation are:
x=5 or x=−5
Therefore, the solution to the problem is x=±5.