Jane evaluates x squared minus 3 x + 5 for x = negative 2 below.

step 1: (negative 2) squared minus 3 (negative 2) + 5
step 2: equals negative 4 + 6 + 5
step 3: equals 7

what, if any, was jane’s mistake?
jane made no mistakes.
jane incorrectly evaluated (negative 2) squared in step 2.
jane incorrectly added the terms in step 3.
jane incorrectly substituted in x = negative 2 in step 1.

B On 2020 edge

Step-by-step explanation:

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584