Question

expand (x-a)(x-b)(x-c)(x-d)​

Answer 1

[x^2 - bx - ax + bc ] [x2-dx-cx+DC]

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Answer 2

Answer:

Step-by-step explanation:

(x^2-bx-ax+ab)(x^2-dx-cx+cd)

(x^4-dx^3-cx^3+cdx^2-bx^3+bdx^2+bcx^2-bcdx-ax^3+adx^2+acx^2-acdx+abx^2-abdx-abcx+abcd)

(x^4-ax^3-bx^3-cx^3-dx^3+abx^2+acx^2+adx^2+bcx^2+bdx^2+cdx^2-abcx-acdx-abdx-bcdx+abcd)