❴-1,3❵ - solve that 22x+1-17.2x+8=0, ❴1❵ - solve that 32x+2.3x-15=0, ❴-1,0❵ - solve that 32x+1-4.3x+1=0, ❴-2❵ - solve that 22x+2+31.2x-8=0, ❴0❵ - solve that 42x+4x+1-5=0,

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