public void testNegPlus()
{
Assert.Equal("y^15-75y^14+2625y^13-56875y^12+853125y^11-9384375y^10+78203125y^9-502734375y^8+2513671875y^7-9775390625y^6+29326171875y^5-66650390625y^4+111083984375y^3-128173828125y^2+91552734375y-30517578125", BinomialExpansion.Expand("(y-5)^15"));
}
public void testANegative()
{
Assert.Equal("625m^4-1500m^3+1350m^2-540m+81", BinomialExpansion.Expand("(-5m+3)^4"));
Assert.Equal("-8k^3-36k^2-54k-27", BinomialExpansion.Expand("(-2k-3)^3"));
Assert.Equal("1", BinomialExpansion.Expand("(-7x-7)^0"));
}
public void testBNegative()
{
Assert.Equal("1", BinomialExpansion.Expand("(x-1)^0"));
Assert.Equal("x-1", BinomialExpansion.Expand("(x-1)^1"));
Assert.Equal("x^2-2x+1", BinomialExpansion.Expand("(x-1)^2"));
}
public void testAPositive()
{
Assert.Equal("625m^4+1500m^3+1350m^2+540m+81", BinomialExpansion.Expand("(5m+3)^4"));
Assert.Equal("8x^3-36x^2+54x-27", BinomialExpansion.Expand("(2x-3)^3"));
Assert.Equal("1", BinomialExpansion.Expand("(7x-7)^0"));
}
public void testBPositive()
{
Assert.Equal("1", BinomialExpansion.Expand("(x+1)^0"));
Assert.Equal("x+1", BinomialExpansion.Expand("(x+1)^1"));
Assert.Equal("x^2+2x+1", BinomialExpansion.Expand("(x+1)^2"));
}
