1. n-3^2
2. 7-(2/n)
3. n=35+(1/2*35)+14
4. (1/n^2)-(19*n)
Answer:
is this a question?
Step-by-step explanation:
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Answer:
x² + 18x +81
x² - 14x +49
4x²- 4x - 1
Step-by-step explanation:
multiply the x in the first parentheses by x and 9 in the other parentheses and
multiply the 9 in the first parentheses by x and 9 in the other parentheses and add all together
(x+9)(x+9)
x² + 9x + 9x + 81
x² + 18x +81
multiply the x in the first parentheses by x and -7 in the other parentheses and multiply the -7 in the first parentheses by x and -7 in the other parentheses and add all together
(x-7)(x-7)
x² -7x - 7x +49
x² - 14x +49
(2x-1)² is the same as (2x-1)(2x-1)
multiply the 2x in the first parentheses by 2x and -1 in the other parentheses and multiply the -1 in the first parentheses by 2x and -1 in the other parentheses and add all together
(2x-1)(2x-1)
4x²-2x-2x+1
4x²- 4x - 1
Answer:
the answer is c august 17
Step-by-step explanation:
Answer:
(3, 0) and (−1, −8)
Equation's:
<h3>
Substitute equation 2 into 1</h3>
2x − (x² − 9) = 6
2x - x² + 9 = 6
-x² + 2x + 9 - 6 = 0
-x² + 2x + 3 = 0
x² - 2x - 3 = 0
x² - 3x + x - 3 = 0
x(x - 3) + 1(x - 3) = 0
(x + 1)(x - 3) = 0
x = -1, x = 3
<h3>Find values for y</h3>
If x = -1, then y = (-1)² - 9 = -8
If x = 3, then y = (3)² - 9 = 0
<h3>Solution Set:</h3>
(x, y) = (-1, -8), (3, 0)