What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x?
2 answers:
Answer:
16
Step-by-step explanation:
The quadratic equation –3 = –x2 + 2x must first be rewritten in standard form:
x^2 - 2x - 3 = 0
or:
1x^2 - 2x - 3 = 0
The coefficients a, b and c are thus {1, -2, -3}, and therefore the discriminant, b^2 - 4ac, is
(-2)^2 - 4(1)(-3), or 4 + 12 = 16
Answer:
d) 16
Step-by-step explanation:
edge 2020-2021
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Answer:
i dont understand either
Step-by-step explanation:
sorry
Answer:
(x+2)² + (y–3)² = 3²
Step-by-step explanation:
just use the standard formula
Step-by-step explanation:
3/2(4x-1)-3x = 5/4-(x+2)
6x -3/2 -3x = 5/4 -x -2
3x -3/2 = 5/4-2-x
4x=5/4 -2 +3/2
4x= (5-8+6)/4
4x=3/4
x=3/16
Answer:
D
Step-by-step explanation:
D is the correct answer
Answer:
X=(5/4)^-10
Step-by-step explanation:
(5/4)^6÷x=(25/16)^8
(5/4)^6÷x=(5/4)^16
1/X==(5/4)^16÷(5/4)^6
X=(5/4)^6÷(5/4)^16
X=(5/4)^-10
So the value of X is (5/4)^-10
