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

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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)²2.(X-Y)

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

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
【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)

1.100-(3x+2y)²=10^2-(3x+2y)²=(10-3x-2y)(10+3x+2y)
2.(X-Y)²-10(X-Y)+25 =(x-y-5)^2
3.X²-Y的四次方 =(x-y^2)(x+y^2)

这都不会,找块豆腐撞吧

第1题=(10+3x+2y)(10-3x-2y)
第2题=(x-y-5)^2
第3题=(x+y^2)(x-y^2)

解1:100-(3x+2y)^2
=10^2-(3x+2y)^2=(10+3x+2y)(10-3x-2y)
解2:(x-y)^2-10(x-y)+25
=(x-y-5)^2
解3:x^2-y^4
=(x+y^2)(x-y^2)