what is discriminant of x (x + 4) = 0?
A. -16
B. -4
C. 0
D. 16
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what is discriminant of x (x + 4) = 0?
A. -16
B. -4
C. 0
D. 16
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Explanation:
Let’s turn the equation into standard form: ax² + bx + c= 0
x(x+4) = 0
x² +4x = 0
Discriminant = b² -4ac
a= 1
b= 4
c= 0
Substitute: d= 4² - (4)(1)(0)
d= 16 - 0
d= 16
So the answer is D.
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Answer:
B. -4 because (x+4)in box is -4 never mind the exterior x