2x + 2y + x2 - x + x2
Simplify the expression by combining like terms

Like terms are terms that have same variable. For example:

The thing that you need to becareful is about the degree. Even though x² and x both are also x-term, but they are not considered like terms. So basically like terms are terms that have same variable and same degree.

Given the expression below:

From the expression:

Arrange in better form for our calculation.

You might also want to arrange the expression degree (optional but recommended).

Answer

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

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