Factor this polynomial expression.
1 answer:
Answer:
B. (5x - 4)(3x + 2)
Step-by-step explanation:
Factor the following:
15x² - 2x - 8
The coefficient of x² is 15 and the constant term is -8. The product of 15 and -8 is -120. The factors of -120 which sum to -2 are 10 and -12.
So,
15x² + (10 - 12)x - 8
15x² + 10x - 12x - 8
5x(3x + 2) - 4(3x + 2)
(5x - 4)(3x + 2)
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For a better understanding of the solution provided here, please find the diagram attached.
In the diagram, ABCD is the room.
AC is the diagonal whose length is 18.79 inches.
The length of wall AB is 17 inches.
From the given information, we have to determine the length of the BC, which is depicted a , because for the room to be a square, the length of the wall AB must be equal to the length of the wall BC.
In order to determine the length of the wall BC, or , we will have to employ the Pythagoras' Theorem here. Thus:
Thus, inches
and hence, the given room is not a square.
Answer:
Step-by-step explanation:
