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larisa86 [58]
2 years ago
14

If using the method of completing the square to solve the quadratic equation x^2-9x+2=0 which number would have to be added to "

complete the square"?
Mathematics
1 answer:
zmey [24]2 years ago
3 0

The number that would have to be added to complete the square is 81/4.

<h3>What is a Quadratic Equation ?</h3>

Quadratic equations are polynomials of degree 2 , It is represwented by ax² + bx +c = 0.

The quadratic equation given is

x² -9x +2 = 0

x² -9x + (81/ 4) - (81/4) + 2 = 0

x² -9x + (9/2)² - (81/4) +2 = 0

(x - 9/2)²  - (73/4) = 0

Therefore , 81/4 will be added to complete the square to solve the quadratic equation.

To know more about Quadratic Equation
brainly.com/question/2263981

#SPJ1

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C) x – 2). 2 ... -2x ≤ 2. ⇔ x ≥ -1. Tập nghiệm S = {x | x ≥ -1}. Bài 2. Gọi x (km) là quãng đường

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the wire is 24 meters long , rounded to the nearest tenth it's 20 .

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4 0
4 years ago
Read 2 more answers
How many solutions will the equation below have?
alexira [117]
It will have 2 solutions
2x^2 + 4x + 10= 0
the solutions would have no real roots
5 0
3 years ago
The combination for opening a safe is a four-digit number made up of different digits. How many different comninations can you m
morpeh [17]

There are 625 different 4-digit codes only made with odd numbers.

<h3></h3><h3>How many different combinations can you make?</h3>

To find the total number of combinations, we need to find the number of options for each one of the digits.

There are 4 digits, such that each digit can only be an odd number.

  • For the first digit, there are 5 options {1, 3, 5, 7, 9}
  • For the second digit, there are 5 options {1, 3, 5, 7, 9}
  • For the third digit, there are 5 options {1, 3, 5, 7, 9}
  • For the fourth digit, there are 5 options {1, 3, 5, 7, 9}

The total number of different combinations is given by the product between the numbers of options, so we have:

C = 5*5*5*5 = 625.

There are 625 different 4-digit codes only made with odd numbers.

If you want to learn more about combinations:

brainly.com/question/11732255

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4 0
2 years ago
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