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GIVEN
x²= x-12
STANDARD FORM
x²-x+12=0
a= 1 b= -1 c= 12
DISCRIMINANT
b²-4ac
(-1)²-4(1)(12)
1-48= -47
NUMBER OF REAL ROOTS
0
NATURE OF ROOTS
Not real
GIVEN
x²= 81
STANDARD FORM
x²-81=0
a= 1 b= 0 c= -81
DISCRIMINANT
b²-4ac
(0)²-4(1)(-81)
0+324= 324
NUMBER OF REAL ROOTS
2
NATURE OF ROOTS
Real Rational Unequal
GIVEN
x²+5x+32=0
a= 1 b= 5 c= 32
DISCRIMINANT
b²-4ac
(5)²-4(1)(32)
25-128= -103
NUMBER OF REAL ROOTS
0
NATURE OF ROOTS
Not real
GIVEN
2x²+3x= 5
STANDARD FORM
2x²+3x-5=0
a= 2 b= 3 c= -5
DISCRIMINANT
b²-4ac
(3)²-4(2)(-5)
9+40= 49
NUMBER OF REAL ROOTS
2
NATURE OF ROOTS
Real Rational Unequal
GIVEN
3x²-14x= 7
STANDARD FORM
3x²-14x-7=0
a= 3 b= -14 c= -7
DISCRIMINANT
b²-4ac
(-14)²-4(3)(-7)
196+84= 280
NUMBER OF REAL ROOTS
2
NATURE OF ROOTS
Real Irrational Unequal
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