5. Find the volume of the cuboid with
dimensions 2x, (3x - y) and (x²– 2x + 4).
Answers
Answered by
4
Answer:
Volume of cuboid is l×b×h
l=(x
2
−2)
b=(2x+4)
h=(x−3)
volume of cuboid = l×b×h
⇒(x
2
−2)(2x+4)(x−3)
⇒(2x
3
+4x
2
−4x−8)(x−3)
⇒(2x
4
+4x
3
−4x
2
−8x−6x
3
−12x
2
+12x+24)
⇒2x
4
+(−2x
3
)+(−16x
2
)+4x+24
⇒2x
4
−2x
3
−16x
2
+4x+24
Answered by
13
Answer:
volume of cuboid = lbh
= 2x × (3x-y) × (x²-2x+4)
= 2x(3x³- 6x² + 12x - x²y + 2xy- 4y)
= 6x⁴ - 12x³ + 24x² - 2x³y + 4x²y - 8xy
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