Which equation can be solved by using this system of equations?
[y-3x³-7x² +5
y-7x4+2x
O 3x³-7x²+5-0
O 3x³-7x²+5-7x²+2x
O 7x²+2x=0
O 7x4 +3x³-7x²+2x+5=0
