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2. -3OP-OQ = -3(4, 2)-(-1, 14)=(-4-2)-(-1, 14)=(-4+1),(-2-14)=(-3, -16)
3. PO= -4, -2 .QO= 1,-14
PO+4QO=(-4, -2)+ 4(1, -14)= (-4+4), (-2-56)= (0, -58)