What are the possible expressions for the dimensions of the cuboid whose volume is 7x2 - 56x + 105 cubic units and value of x is greater than 5
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Answer:
To find the possible dimensions of cuboid whose volume is 12kx
2
+8kx−20k, we factorize 12kx
2
+8kx−20k
=4k(3x
2
+2x−5)
=4k(3x
2
+5x−3x−5)
=4k[3x(x−1)+5(x−1)]
=4k(x−1)(3x+5)
So, the possible dimensions are 4k units, (x−1) units, (3x+5) units
This is the clue
Just follow this method
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