1.

(i)Thevolumeofthecuboidis12ky2+8ky-20k,thenfindthepossibleexpressions.

Answer»

4k(3y^2+2y-5)=4k(3y^2-3y+5y-5)=4k(3y(y-1)+5(y-1)=4k(3y+5)(y-1)



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