We need a bit of a clue as to what you want done with this.Originally Posted by danielwu
alright i have solve it.
but here is another question which i also don't know how to do.
can help me.
Solve the given equations, determine the character of the roots.
In finding the radius r of a circular arch of height h and span b, an architect used the following formula. solve for h
You mean,Originally Posted by danielwu
That is what I did.
You only look at the expression under the radical.
This tells you its signs.
If it is negative then you have imaginaries.
If it is zero then you have one a singal solution to quadradic.
It it is positive then you have two distint solution.
And if the positive term is a perfect square then you have rational solutions.