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2 years ago

Solve the following equation

Mathematics

1 answer:

Ilya [14]2 years ago

7 0

Answer:

x = 5

Step-by-step explanation:

here's the solution in attached image

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Solve 2x^2 + x - 4 = 0 X2 +

damaskus [11]

Answer:

$\large \boxed{\sf \ \ x = -\dfrac{\sqrt{33}+1}{4} \ \ or \ \ x = \dfrac{\sqrt{33}-1}{4} \ \ }$

Step-by-step explanation:

Hello, please find below my work.

$2x^2+x-4=0\\\\\text{*** divide by 2 both sides ***}\\\\x^2+\dfrac{1}{2}x-2=0\\\\\text{*** complete the square ***}\\\\x^2+\dfrac{1}{2}x-2=(x+\dfrac{1}{4})^2-\dfrac{1^2}{4^2}-2=0\\\\\text{*** simplify ***}\\\\(x+\dfrac{1}{4})^2-\dfrac{1+16*2}{16}=(x+\dfrac{1}{4})^2-\dfrac{33}{16}=0$

$\text{*** add } \dfrac{33}{16} \text{ to both sides ***}\\\\(x+\dfrac{1}{4})^2=\dfrac{33}{16}\\\\\text{**** take the root ***}\\\\x+\dfrac{1}{4}=\pm \dfrac{\sqrt{33}}{4}\\\\\text{*** subtract } \dfrac{1}{4} \text{ from both sides ***}\\\\x = -\dfrac{1}{4} -\dfrac{\sqrt{33}}{4} \ \ or \ \ x = -\dfrac{1}{4} +\dfrac{\sqrt{33}}{4}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

4 0

3 years ago

WHY DOES THE POPE HAVE THE MOST POWER IN FEUDAL SOCIETY?

Svet_ta [14]

Answer:

During the medieval times in Europe, religion was of supreme importance and ... Due to this reason, the medieval pope enjoyed more power than even rulers. ... In early medieval times in particular the medieval pope could have more power ...

Step-by-step explanation:

not math

5 0

3 years ago

100 cm is equal to: A. 0.1 m B. 1,000 m C. 10 m D. 1 m

Scrat [10]

Answer:

D. 1 m

Step-by-step explanation:

100 cm = 1 m

This is a conversion factor

3 0

3 years ago

Read 2 more answers

What is the solution to 1/2n+3=6

Alona [7]

n in (-oo:+oo)

(1/2)*n-3 = 6 // - 6

(1/2)*n-6-3 = 0

1/2*n-9 = 0 // + 9

1/2*n = 9 // : 1/2

n = 9/1/2

n = 18

5 0

3 years ago

Read 2 more answers

The tallest person who ever live was approximately 8‘11" tall writing in a quality that represents the heights of every other pe

Soloha48 [4]

Answer:

h < 8'11"

Step-by-step explanation:

The tallest person is 8'11". All other people are shorter, not larger, and not the same height.

4 0

3 years ago

Solve the following equation​

Solve the following equation