4. The number of x-intercepts produced by the quadratic formula may be 0, 1, or 2. It will be 0 if the two roots are complex. It will be 1 if the two roots lie in the same place (one root with multiplicity 2). It is true that there may be only one x-intercept.
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5. The value of 'b' in the quadratic formula is the coefficient of the linear term. In the given quadratic, it is -5, not 5.
1) X^5Y/X^5= X^0Y= Y (Anything raise to power of 0 is 1) 2)(3mn)^1= 3mn 3)m^-4xM^5= M^-4+5= M 4) 5^-4x5^4= 5^-4+4= 5^0= 1 5) nm^3/n^3m= n^1-3m^3-1= n^-2m^2= m^2/n^2 6) (-2)^0= 1
