Find the sum: (3х2 + 5х – 8) + (5х2 – 13х-5)
8х +8х - 13
ов. 82 – 8х + 13
8x - 8х - 13
ор. 8х2-х- 13
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C

Step-by-step explanation:

The actual answer is 8x^2 - 8x - 13

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

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