Mathematics, 11.11.2019 08:31, edgytaehyung
Which is equivalent to (β2m + 5n)2, and what type of special product is it4m2 + 25n2; a perfect square trinomial 4m2 + 25n2; the difference of squares 4m2 β 20mn + 25n2; a perfect square trinomial 4m2 β 20mn + 25n2; the difference of squares
Answers: 3
![(-2m+5n)^2=(-2m+5n)(-2m+5n)\\\\ (-2m+5n)^2=(-2m)\cdot(-2m+5n)+(5n)(-2m+5n)\\\\ (-2m+5n)^2=[(-2m)\cdot(-2m)+(-2m)\cdot(5n)]+[(5n)\cdot(-2m)+(5n)\cdot(5n)]\\\\ (-2m+5n)^2=4m^2-10mn-10mn+25n^2\\\\ (-2m+5n)^2=4m^2-20mn+25n^2](/tpl/images/0368/8702/febb6.png)
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Which is equivalent to (β2m + 5n)2, and what type of special product is it4m2 + 25n2; a perfect squ...
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