Florence began deriving the quadratic formula. ax² + bx + c = 0 x2+bax+ca=0 x2+bax=−ca what step should florence do next?

 We have quadratic equation, ax² + bx + c = 0

Adding both sides with square of half of b/a.

    ±

            ±

These are the steps Florence should do next.

what are the options? ?

step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.