Question

add the product of (2x-y) and (4y-x)to the product of (x-5y) and (7y+3x).​

Answer 1

Answer:

${x}^{2} - 39 {y}^{2} + xy$

Step-by-step explanation:

(2x-y) (4y -x)

+ (x -5y)(7y +3x)

= 8xy - 2x^2 - 4y^2 + xy + 7xy +3x^2 - 35 y^2 - 15xy

= x^2 - 39 y^2 +xy

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