11. Evaluate the expression b2 - 4ac given the values of a = 3 b = -6 and c = -5 a.-24
b.24
c.96
d.0
12.If the discriminant of the equationis negative then the nature of the roots are______
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
13.If the discriminant of the equation is zero then the nature of the roots are _____
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
14. What is the nature of the roots of the equation x2+2x - 3=0
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
15.What is the nature of the roots of the equation x2+12x + 36 =0
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
b.24
c.96
d.0
12.If the discriminant of the equationis negative then the nature of the roots are______
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
13.If the discriminant of the equation is zero then the nature of the roots are _____
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
14. What is the nature of the roots of the equation x2+2x - 3=0
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
15.What is the nature of the roots of the equation x2+12x + 36 =0
a.real and equal
b.rational but not equal
c.irrational and not equal
d.not real
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