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andrezito [222]
3 years ago
8

4x(x-25)=0 how to solve the quadratic equations using any of the four methods?​

Mathematics
1 answer:
butalik [34]3 years ago
7 0

Answer:

x=25 or x=0

Step-by-step explanation:

4x(x−25)=0

Step 1: Simplify both sides of the equation.

4x2−100x=0

For this equation: a=4, b=-100, c=0

4x2+−100x+0=0

Step 2: Use quadratic formula with a=4, b=-100, c=0.

x=−b±√b2−4ac over 2a

x=−(−100)±√(−100)2−4(4)(0) over 2(4)

x=100±√10000 over 8

x=25 or x=0

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What is the value of n in the equation 0=18+128n^2?
lbvjy [14]

Answer:

\large\boxed{\text{no soltion in the set of real numbers}}\\\boxed{n=-\dfrac{3}{8}i\ \vee\ n=\dfrac{3}{8}i\ \text{in the set of complex numbers}}

Step-by-step explanation:

18+128n^2=0\qquad\text{subtract 18 from both sides}\\\\128n^2=-18\qquad\text{divide both sides by 128}\\\\n^2=-\dfrac{18}{128}\\\\n^2=-\dfrac{18:2}{128:2}\\\\n^2=-\dfrac{9}{64}

7 0
3 years ago
Зx +1 &lt;10<br> What is the answer for this
balandron [24]

Answer:

x < 3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Inequality</u>

3x + 1 < 10

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 1 on both sides:                    3x < 9
  2. Divide 3 on both sides:                       x < 3

Here we see that any value <em>x</em> smaller than 3 would work as a solution to the inequality.

3 0
3 years ago
Find the product. (-2x^2)^3 ·3x
poizon [28]
(-2x^2)^3 * 3x

3(-8(x^2)^3)x

3(-8x^6)x

3(-8x^7)

-24x^7

Hope this is accurate & helpful! Let me know if I made any errors or if you have any additional questions.
3 0
2 years ago
Please look at photo and help me I will mark who ever is first
maksim [4K]

Answer:

a = 9

Step-by-step explanation:

you can simplify the proportion to:

\frac{a}{24} =\frac{3}{8}

use cross- multiplication

8a = 72

a = 9

5 0
2 years ago
Subtracting a negative is the same as....
erik [133]
Same as adding together
3 0
2 years ago
Read 2 more answers
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