Question

factorise:xy(z^2+1)+z(x^2+y^2)​

Answer 1

Answer:

(y+zx) (zy+x)

Step-by-step explanation:

xy(z^2+1)+z(x^2+y^2)

=xyz^2 + xy + zx^2 + zy^2

=(xyz^2 + zy^2) + (xy+ zx^2)

=zy(xz+y) + x(y+zx)

=(y+zx) (zy+x)

Answer 2

Answer:

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