Question
Question Solve for all values of x: sqrt (x)-5=sqrt (x+10) Answer Attempt 1out of 2 x=
Solution
4.2
(293 Votos)
Alessandra
Veterano · Tutor por 10 anos
Resposta
To solve the equation
, we can start by isolating one of the square roots.First, let's isolate
by adding 5 to both sides of the equation:
Next, we can square both sides of the equation to eliminate the square roots:
Simplifying the right side of the equation, we get:
Now, let's isolate the square root term by subtracting
from both sides:
Simplifying further, we have:
Next, let's isolate the square root term by subtracting 15 from both sides:
Simplifying, we get:
Now, let's isolate the square root term by adding
to both sides:
Finally, let's isolate the square root term by dividing both sides by 10:
To solve for
, we can square both sides of the equation again:
Simplifying, we get:
Multiplying both sides by 100, we have:
Rearranging the terms, we get a quadratic equation:
We can solve this quadratic equation using the quadratic formula:
In this case,
,
, and
. Plugging these values into the quadratic formula, we get:
Simplifying further, we have:
Therefore, the solutions for
are:
or
So, the final answer is:
or