David wants to hang a mirror in his room but the mirror and frame must not have an area larger than 8 square feet. The mirror is 2 feet wide and 3 feet long. Which quadratic equation represents the area of the mirror and frame combined? (The frame must have equal width of x on each side.)

Question

gabylovesyou · Answer

@nubeer

anonymous · Answer

sorry it took so long but i haven't done a problem like this in ages. the answer is C.
$$4x^2+10x-2=0$$

gabylovesyou · Answer

how do u know when a graph has 2 irrational solutions ?

anonymous · Answer

hmm if you have the graph can i see how it looks like?

gabylovesyou · Answer

attachment

anonymous · Answer

i remember! It depends on the value of $$b^2-4ac$$ when it is in the quadratic formula

gabylovesyou · Answer

is that graph irrational ?