49b^2+41b+9

Solve showing step by step

please

Question

49b^2+41b+9

Solve showing step by step

please

amistre64 · Answer

what do you get when you try it?

amistre64 · Answer

the most basic method would be to complete the square; which is just the long hand version of the quadratic formula

anonymous · Answer

$$49b^2+41b+9$$
$$ax^2+bx+c=0$$
quadratic formula:$$roots = {-b \pm \sqrt{\Delta} \over 2a} $$
where,$$\Delta = b^2-4ac$$

amistre64 · Answer

isnt writing delta for a shortcut, and then haveing to define delta kinda defeating the purpose of writing delta to begin with ;)

anonymous · Answer

That's an expression and not an equation

anonymous · Answer

well, it depends.. you can use Delta to find the vertex so... you never know, always good to have as a side (:

amistre64 · Answer

how do you use delta, the discriminate, to find the vertex?

anonymous · Answer

After you find Delta, discriminate the points of vertex should be:

y=-D/4a    at    x=-b/2a