1.

∣∣∣∣x+42x2x2xx+42x2x2xx+4∣∣∣∣=(5x+4)(4−x)2. ∣∣∣∣y+kyyyy+kyyyy+k∣∣∣∣=k2(3y+k)

Answer»


x+42x2x2xx+42x2x2xx+4
=(5x+4)(4x)2
.


y+kyyyy+kyyyy+k
=k2(3y+k)



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