1) mx^2-mz^2 2) 5a^2-10ab+5b^2 3) 45m+6n-3mn-90 4) x^2-y^2-x+y 5) mk^4-k^4+mk^3-k^3

Question

1) mx^2-mz^2
2) 5a^2-10ab+5b^2
3) 45m+6n-3mn-90
4) x^2-y^2-x+y
5) mk^4-k^4+mk^3-k^3

Answer 1

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