substract 3x(-x+y+z)from the sum 2x(x+y+z)and-4y(x+y+z)
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Answer:
=5X²-5xy+5xz-4y²-4y Ans
Step-by-step explanation:
3x(-x+y+z) = -3+3xy+3xz
2x(x+y+z) = 2+2xy+2xz
-4y(x+y+z) =-4xy-4y²-4yz
Sum
= 2+2xy+2xz-4xy-4y²-4y
sum =2x²-2xy+2xz-4y²-4y
Subtract -3+3xy+3xz
=2x²-2xy+2xz-4y²-4y-(-3x²+3xy-3xz)
=2x²-2xy+2xz-4y²-4y+3x²-3xy+3xz
=5X²-5xy+5xz-4y²-4y Ans
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