15.) What is the value of the discriminant of the quadratic equation x² - 7x + 10 = 0?
a. 9
b. -9
c. 89
d. -89
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15.) What is the value of the discriminant of the quadratic equation x² - 7x + 10 = 0?
a. 9
b. -9
c. 89
d. -89
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x² - 7x + 10 = 0
b² - 4ac = (-7)² - 4(1)(10)
= 49 - 40
= 9
Answer: A. 9
Answer:
a.9
Step-by-step explanation:
Identify the coefficients a,b,and c of the
quadratic equetion
a=1,b=-7,c=19
Evaluate the discriminant by substituting
a-1,b=-7and c=10
into the expression b2-4ac
(-7)2-4x1x10
calculate the value
9
Solution
9