how to solve this:

((x^2)/(275625)) + ((78400)/(122500)) = 1

i tried again and i solved it.

If your solution x=315 you solve it correctly.

To solve the equation:

((x^2)/(275625)) + ((78400)/(122500)) = 1,

you can follow these steps:

Step 1: Simplify the fractions on the left side of the equation:
In the first fraction, the denominator is not a perfect square, so we leave it as it is.
In the second fraction, both the numerator and denominator are perfect squares. Hence, we simplify the fraction to get (56^2)/(35^2).

The equation now becomes:
(x^2)/(275625) + (56^2)/(35^2) = 1

Step 2: Find a common denominator for the fractions on the left side:
The common denominator for the fractions is the product of both denominators. In this case, the common denominator is (275625) * (35^2).

Step 3: Rewrite the fractions with the common denominator:
Multiply both the numerator and denominator of each fraction by the appropriate factor to make the denominators equal to the common denominator:

[(x^2) * (35^2) + (56^2) * (275625)] / [(275625) * (35^2)] = 1

Step 4: Combine the numerators:
Multiply the numerator and denominator of each fraction and then combine the resulting numerators:

[(x^2) * (35^2) + (56^2) * (275625)] = (275625) * (35^2)

Step 5: Simplify the equation:
Compute the values on each side of the equation:

(x^2) * (1225) + (56^2) * (275625) = (275625) * (1225)

Step 6: Solve for x:
Bring all terms involving x to one side of the equation and constants to the other side:

(x^2) * (1225) = (275625) * (1225) - (56^2) * (275625)

Step 7: Simplify the equation:
Compute the values on the right-hand side of the equation:

(x^2) * (1225) = (275625 - 56^2) * (1225)

Step 8: Solve for x:
Divide both sides of the equation by (1225) to isolate x:

x^2 = [(275625 - 56^2) * (1225)] / (1225)

Step 9: Take the square root of both sides:
Take the square root of both sides of the equation to solve for x:

x = ±√{[(275625 - 56^2) * (1225)] / (1225)}

Now, you can simplify the expression further and evaluate the square root to find the solutions for x.