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• Complex numbers step by step
• Regular Equations Step by Step
• Mathematical logic step by step

• How to use it?

• Least common denominator:
• ((z+2)/(2*z+4))+((2*z+1)/(3*z-4))
• -z/1-z/2
• (x/y)-(y/x)-y/x+y-1
• x/sqrt(4-x*x)+2*x*(-1/sqrt(4-x*x)-(2+sqrt(4-x*x))/x^2)/(2+sqrt(4-x*x))
• Factor polynomial:
• z^3+9*z^2+25*z+17
• y^2-216
• x^6-64
• x-3*x^2
• Factor squared:
• y^4+5*y^2-9
• x^2-4*x+4
• x^2-2*x-1
• y^4-9*y^2-15
• How do you in partial fractions?:
• -1+x/(x^2-2*x+2)+(x^2+3*x+2)/(x^2-x+2)
• y/(y+2)+-y*(y+2)/(2-y)^2
• (x^2-1)/(x^2+1)
• 1/(x-x^2)

• Identical expressions

• -z/ one -z/ two
• minus z divide by 1 minus z divide by 2
• minus z divide by one minus z divide by two
• -z divide by 1-z divide by 2

• Similar expressions

• -z/1+z/2
• z/1-z/2