Question

can you maybe help me out. ​

Answer 1

1- 3x(x-4)

v=3.x.(x-4)

L=3 , b=x , H=(x-4).

2- 4K(3yka square+ 2y-5)

4k(3yka square+5y-3y-5)

4k(y(3y+5)-1(3y+5))

4k(3y+5)(y-1)

L=4k, b= (3y+5), h= (y-1).

Answer 2

1.volume=3x²-12x

so l×b×h=3x²-12x

=3x(x-4)(1)

so l×b×h=3x(x-4)(1)

so the possible expression for length breadth and height are 3x,x-4,and 1

2.volume=12ky²+8ky-20k

so l×b×h=12ky²+8ky-20k

=k(12y²+8y-20)

=k(12y²-12y+20y-20)

=k[12y(y-1)+20(y-1)]

=(k)(12y+20)(y-1)

so the possible expressions for the dimensions of this cuboid are k , 12y+20 and y-1

Hope it's useful.