(X^3YZ^2-20XY+21X^3)+(15X^3-41X^3YZ^2-3XY)

How come when you find the square of the binomial (2x-5y)^2, the answer is 4x^2-20xy+25y^2 (according to my book)? I would think
1. 1 answer
2. asked by Sandrine
3. 466 views
If 3xy^3 - 4x = 10y^2, find y ' (x)a) (4 + 3y^2)/(9xy^2 + 20y) b) (4 - 3y^2)/(9xy^2 - 20y) c) (3 + 4y^2)/(20xy^2 + 9y) d) (3 -
1. 2 answers
2. asked by Donna
3. 717 views
(X^3YZ^2-20XY+21X^3)+(15X^3-41X^3YZ^2-3XY)
1. 1 answer
2. 83 views
(X^3YX^2-20XY+21X^3)+(15X^3YZ^2-3XY)
1. 1 answer
2. 78 views
(2xy^2+16x^2y-20xy+8) / (4xy)
1. 1 answer
2. asked by christine
3. 549 views
(2x + 5y)(3x^2 - 4xy + 2y^2)= 6x^3 - 8xy + 4xy^2 + 15x^2y - 20xy^2 + 10y^3
1. 1 answer
2. asked by Anonymous
3. 788 views
20xy=? I do not get this at all! Please HELP!
1. 3 answers
2. asked by renee
3. 327 views
please i need help factoring these problems....20xy, 36g^2h^2, and 44m^2n
1. 1 answer
2. asked by savannah
3. 408 views
Factor the expression 4x^2-20xy+25y^2into a product of binomials
1. 1 answer
2. asked by kozy
3. 602 views
(5x^3y/20xy^5)^4According to my teacher the answer is x^8/256y^16, but I don't understand how to get there.
1. 1 answer
2. asked by Max
3. 808 views