求助分解因式
x^2-10x-24；a^2b^2-ab-20;x^2+xy+150y^2;x^4-5x^2y^2-36y^4;6ax+3ay-2bx-by;x^2y^2-x^2-y^2...
x^2-10x-24；a^2b^2-ab-20;x^2+xy+150y^2;x^4-5x^2y^2-36y^4;6ax+3ay-2bx-by;x^2y^2-x^2-y^2+1;x^2-2x-4y^2-4y
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x^2-10x-24=(X-12)(X+2)；
a^2b^2-ab-20=(AB-5)(AB+4);
x^2+xy+150y^2=?;
x^4-5x^2y^2-36y^4=(X�0�5-9Y�0�5)(X�0�5+4Y�0�5)=(X-3Y)(X+3Y)(X�0�5+4Y�0�5);
6ax+3ay-2bx-by=(3a-b)(2x+y);
x^2y^2-x^2-y^2+1=(x+1)(x-1)(y+1)(y-1);
x^2-2x-4y^2-4y=(x+2y)(x-2y)-2(x+2y)=(x+2y)(x-2y-2)
a^2b^2-ab-20=(AB-5)(AB+4);
x^2+xy+150y^2=?;
x^4-5x^2y^2-36y^4=(X�0�5-9Y�0�5)(X�0�5+4Y�0�5)=(X-3Y)(X+3Y)(X�0�5+4Y�0�5);
6ax+3ay-2bx-by=(3a-b)(2x+y);
x^2y^2-x^2-y^2+1=(x+1)(x-1)(y+1)(y-1);
x^2-2x-4y^2-4y=(x+2y)(x-2y)-2(x+2y)=(x+2y)(x-2y-2)
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