Question

simplify and find the value of (2x-4xy+9x²)-(x+2xy-3x²). when x =-1,y=1 and answer should be 17​

Answer 1

Answer:

(2x-4xy+9x²)-(x+2xy-3x²)

2x-4xy+9x²-x-2xy+3x²

x-6xy+12x²

(-1)-6(-1)(1)+12(-1)²

-1+6+12

17

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