The polynomial 4x ^ 2y-5x ^ 3Y ^ 2 + 7xy ^ 3-6 / 7 is arranged by the descending power of X and by the ascending power of Y

The polynomial 4x ^ 2y-5x ^ 3Y ^ 2 + 7xy ^ 3-6 / 7 is arranged by the descending power of X and by the ascending power of Y

The descending order of X is - 5x ^ 3Y ^ 2 + 4x ^ 2Y + 7xy ^ 3-6 / 7
The ascending order of Y is - 6 / 7 + 4x ^ 2y-5x ^ 3Y ^ 2 + 7xy ^ 3
Should be like this! Learning too long to forget, hope to help you!

Factorization: A ^ 4-2a ^ 2B ^ 2-8b ^ 4

Factorization: 2A ^ 3-2a ^ 2B + 8b-8a

2(a^3) - 2(a^2)b + 8b - 8a
= 2(a^2)( a - b ) - 8( a - b )
= 2( a - b )( a^2 - 4 )
= 2( a - b )( a - 2 )( a + 2 )

Factorization factor: 20A ^ 4-33a ^ 2B ^ 2 + 7b ^ 4 factorization factor: x ^ 2-5x + 3 x ^ 2-2 radical 2x-3

20a^4-33a^2b^2+7b^4
=(4a^2-b^2)(5a^2-7b^2)
=(2a+b)(2a-b)(5a^2-7b^2)
x²－5x＋3＝x²－5x＋﹙5/2﹚²－﹙5/2﹚²＋3
＝﹙x－5/2﹚²－13/4
＝﹙x－5/2－√13/2﹚﹙x－5/2＋√13/2﹚
x^2-2√2*x-3
=(x^2-2√2x+2)-2-3
=(x-√2)^2-5
=(x-√2+√5)(x-√2-√5)