what is the discriminant of the quadratic equation x^2-7x-9=0
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what is the discriminant of the quadratic equation x^2-7x-9=0
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Answer:
Step-by-step explanation:
x²-7x-9=0
identify the coefficients a,b,c of the quadratic equation
evaluate the discriminant by substituting a= 1, b= -7, c= -9
into expression b² -4ac
calculate the value
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