Examine the system of equations. 2x + y = 34 -3x + 12y = 25 If you multiply the first equation by 2, what must you multiply the second equation by to eliminate the y-variable. -4 -2 1 4

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1. a^4+8a^3+24a^2+32a+16

2.y^8+8y^7+28y^6+56y^5+70y^4+56y^3+28y^2+8y+1

3.x^6-3x^4y^2+3x^2y^4-y^6