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kicyunya [14]
3 years ago
10

Solve for x. write both solutions separated by a comma. 2x^2-5x+2=0​

Mathematics
1 answer:
Nataly [62]3 years ago
7 0

BY USING MIDDLE TERM SPLITTING,

2x^2-(4x+x)+2=0

(2x^2-4x)-(x-2)=0

2x(x-2)-1(x-2)=0

(2x-1)(x-2)=0

Two solutions are 2, 1/2

HOPE THIS WILL HELP U

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What conclusion can be derived by comparing the central tendencies of the two data sets. A: 7,6,3,1,6,2,4,6,3,5. Set B: 2,2,2,3,
elena-s [515]
The Average mean of both data sets is same.

6 0
3 years ago
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Theodore says 7×600 is greater than 6×7000. cristal says 7×600 is less than 6×7,000.​
noname [10]

Answer:

Cristal is correct because 7 x 600 is less than 6 x 7,000.

Step-by-step explanation:

Because they are just switching the numbers 7 and 6 and 7 x 6 = 6 x 7, you have to look at the number of zeros. As you can see, 7,000 has 1 more zero than 600, so Cristal is correct. Just like I said 7 x 6 and 6 x 7 is interchangeable, so is 7 x 600 and 6 x 700, they both equal 4,200. However, 6 x 7,000 is 42,000.

Hope this helps! If you have any additional questions please don't hesitate to ask me or your teacher to be sure you master the subject. Stay safe and please mark brainliest! :)

7 0
3 years ago
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What are the roots of the polynomial equation x3 - 6x = 3x2 - 8? Use a graphing calculator and a system of equations.
makkiz [27]

Answer:

d : 4, 1, -2.

Step-by-step explanation:

There's no need for a calculator in my opinion because we can use the rational root theorem which states that the equations of this form:

\sum_{i=0}^{n} a_{i}x^i = 0 = a_{0} + a_{1}x + a_2x^2 + ... + a_nx^n = 0\\ a_i \in \mathbb{Z}

Have rational roots, than the roots are of the form: \frac{k \cdot a_o}{p \cdot a_n}, \ where \ k, p \in \mathbb{Z}.

Rewriting the equation we have:

x^3 - 3x^2 -6x + 8 = 0\\By \ our\ previous \ claim \ x \in D_8 \ where \ D_n \ the \ set \ of \ divisors \ of \ n.\\D_8 = \{\pm 1, \pm 2, \pm 4, \pm 8\} \\We \ plug \ in \ some \ number from \ D_8.\\Letting \ x = -2;\\(-2)^3 -3(-2)^2 -6(-2) + 8 = 0 \ \ \ Thus \ x+2 \ is \ a \ factor.\\We \ can \ now \ simplify \ the \ eq. \ using \ Polynomial \ Long \ Division.

x^3 -3x^2 -6x + 8 = (x+2)(Q(x))\\To \ find \ Q \ we \ divide \ the \ original \ equation \ by \ x + 2; which \ yields:\\Q(x) = x^2 - 5x + 4.\\So \ we \ can \ use \ the \ quadratic \ formula \ to \ find \ the \ roots:\\x = 4,x = 1. \\Thus \ x \in \{-2, 1, 4\}. \ \ These \ are \ all \ the \ roots.

5 0
4 years ago
2.50=?%...............................
k0ka [10]
2.50 would be 25% out of 100%
4 0
3 years ago
HELP, QUICK.
aev [14]
Y=ab^2 + bx + c

That’s the equation
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3 years ago
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