Question #b0e7d
2 Answers
Explanation:
We are given two equations and asked to solve for a third.
In order to do so, we need to find some sort of relationship between all three equations. Since there are squares in the first equation, lets try squaring the unsolved equation.
If we expand the part underneath the radical, we get;
Now all of the terms underneath the radical are the same as the terms in the given equations. After rearranging, we have;
Adding parenthesis, we can see the first two equations under the radical.
We can replace the terms within parenthesis with their solved values from above.
Finally, solve the expression.