Answer:

Step-by-step explanation:

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3,4,5,6
The lowest integer is 3
8xy-7xy-3xy-3y²-2y²+8y²+5x²+12x²
then simplify by combining like terms -2xy+3y²+17x²
X/7-4=-2 u add two to both sides
x/7-2=0you add two to both sides again
x=14 u multiplied 7 and 2 and by x
The answers my dear friends is 15x^6-20x^5+10x^4