Which of the following expression is a perfect square?
1 answer:
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Answer:
The value of the discriminant if 0
There is one x-int at (3/2 , 0)
Step-by-step explanation:
<u>Discriminant equation = </u>
<u>Step 1: Identify a, b, and c</u>
f(x) = −4x^2 + 12x − 9
a b c
So... a = -4, b = 12, c = -9
<u>Step 2: Plug into the formula</u>
<u />
Answer: The value of the discriminant if 0
<u>Step 3: Find the x-intercepts</u>
f(x) = −4x^2 + 12x − 9
f(x) = -(2x - 3)^2
2x - 3 + 3 = 0 + 3
2x / 2 = 3 / 2
x = 3/2
Answer: There is one x-int at (3/2 , 0)