Answer:
1. y² - 3x - 18
2. 4x² - 33x + 35
3. 12x² - 11x + 2
Step-by-step explanation:
All we do with these questions are expanding the factored binomials. Use FOIL:
1. y² + 3y - 6y - 18
y² - 3y - 18
2. 4x² - 28x - 5x + 35
4x² - 33x + 35
3. 12x² - 3x - 8x + 2
12x² - 11x + 2
Determined by the signs multiplication is × or using it or could be 2 numbers attached like this 2y but for deciding it's a ÷ or / but that is some of the signs
The coordinates of centroid of given triangle are: (3,3)
Step-by-step explanation:
Given
D(0,1) = (x1,y1)
E(2,6) = (x2,y2)
F(7,2) = (x3,y3)
The centroid of a triangle when the vertices are known is given by:

Putting the values

Hence,
The coordinates of centroid of given triangle are: (3,3)
Keywords: Triangle, centroid
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<span>23863.05 is the answer to the problem</span>