来自冯小年的问题
用公式法分解因式1.100-(3x+2y)²2.(X-Y)²-10(X-Y)+253.X²-Y的四次方
用公式法分解因式
1.100-(3x+2y)²
2.(X-Y)²-10(X-Y)+25
3.X²-Y的四次方
1回答
2020-07-3100:42
用公式法分解因式1.100-(3x+2y)²2.(X-Y)²-10(X-Y)+253.X²-Y的四次方
用公式法分解因式
1.100-(3x+2y)²
2.(X-Y)²-10(X-Y)+25
3.X²-Y的四次方
【1】10^2-(3X+2Y)^2=(10-3X-2Y)(10+3X+2Y)
【2】(X-Y)^2-2*5*(X-Y)-5^2=(X-Y-5)^2
【3】X^2-Y^4=(X-Y^2)(X+Y^2)