Question

Possible polynomial expression for the given volume of cuboid 12y²+8y -20 is ______

a) 4 (3y+5) (y-1)
b) 4 (3y-4) (y-2)
c) 4 (3y+4) (y+3)
d) none of the above

choose the right answer...?

Answer 1

The answer is option a)

4 ( 3y^2 + 2y - 5)
= 12y^2 + 8y - 20

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Answer 2

12y² + 8y - 20

12y² - 12y + 20y - 20

12y(Y - 1) + 20(Y - 1)

(12y - 20)(Y -1)

(4×3×y - 4×5)(Y - 1)

4(3y-5)(Y - 1)

so the correct option is (a)