(5m^2+3n^2)-(3m^2+5n^2)因式分解..救急..谢咯!

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(5m^2+3n^2)-(3m^2+5n^2)因式分解..救急..谢咯!(5m^2+3n^2)-(3m^2+5n^2)因式分解..救急..谢咯!(5m^2+3n^2)-(3m^2+5n^2)因式分解.

(5m^2+3n^2)-(3m^2+5n^2)因式分解..救急..谢咯!
(5m^2+3n^2)-(3m^2+5n^2)因式分解
..救急..谢咯!

(5m^2+3n^2)-(3m^2+5n^2)因式分解..救急..谢咯!
(5m^2+3n^2)-(3m^2+5n^2)
=2m^2-2n^2
=2(m+n)(m-n)

5m^2+3n^2)-(3m^2+5n^2)
=(5m^2-3m^2)+(3n^2-5n^2)
=2m^2-2n^2
=2(m+n)(m-n)