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maw [93]
3 years ago
15

Evaluate the following expression: -X- 6x + 10 when x = 5

Mathematics
1 answer:
BigorU [14]3 years ago
8 0

Answer:

-25

Step-by-step explanation:

Evaluate -x - 6 x + 10 where x = 5:

-x - 6 x + 10 = -5 - 6×5 + 10

-6×5 = -30:

-5 + -30 + 10

-5 - 30 + 10 = 10 - (5 + 30):

10 - (5 + 30)

5 + 30 = 35:

10 - 35

10 - 35 = -(35 - 10):

-(35 - 10)

| 3 | 5

- | 1 | 0

| 2 | 5:

Answer:  -25

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The sum of two consecutive even integers is 18. Write an equation to find the integers.
sdas [7]

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3 years ago
6x - 2y - 3z = 4<br><br> 3x + 2y + 2z = 7<br><br> 9x - 3y + 3z = -9
Anna71 [15]

Answer:

X= 1, Y= 4, Z= -2

Step-by-step explanation:

(3(6x-2y-3z=4)) + (-2(9x-3y+3z=-9))

Z=-2

Substitute in Z

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Substitute in Z and X

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The model represents the factorization of 2x2+5x+3. An algebra tile configuration. 4 tiles are in the Factor 1 spot: 2 +x tiles,
geniusboy [140]

The factors of the polynomial are <u>(2x + 3) (x + 1)</u>

<h3>Further explanation</h3>

Factoring A Quadratic Equation means finding a factor of an equation that if multiplied produces a quadratic equation

We can solve the quadratic equation with the formula or we can do it by finding the common factor as below

From the 2x² + 5x + 3 equation, we can determine a, b and c from the general quadratic equation namely ax² + bx + c:

a = 2, b = 5, c = 3

First, find two numbers that multiply to give a x c and add to give b.

From the equation above:

a x c = 6, and b = 5

we look for a factor of 6 which when added together gets the number 5

a factor of 6: 1,2,3,6

of these factors which can be added to 5 are 2 and 3

So the form of the equation becomes:

2x² + 2x + 3x + 3

(2x² + 2x) + (3x +3)

2x (x + 1) + 3 (x + 1)

(x + 1) -> common to both terms

We use the principle of distributive property of addition

ax (b + c) = axb + axc -> a = x + 1

<em>so the factors</em><em> : (2x + 3) (x + 1)</em>

<em />

<h3>Learn more</h3>

Greatest common factor

brainly.com/question/6457291

Keywords : factorization, polynomial, the quadratic equation

#LearnwithBrainly

<h3 />

<em />

10 0
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