Ask question

Ask question

All categories

2 years ago

7

Using the quadratic formula, what are the solutions to x2 – 3x = -2?

2 answers:

Kryger [21]2 years ago

6 0

Step-by-step explanation:

<h2>Nubra Valley in Ladakh. Nubra Valley | #1 of 30 Most Beautiful Places in India. ... </h2><h2>Khajjiar in Himachal Pradesh. ... </h2><h2>Valley of Flowers in Uttarakhand. ... </h2><h2>Dal Lake in Srinagar. ... </h2><h2>Munnar in Kerala. ... </h2><h2>Dudhsagar Falls in Goa. ... </h2><h2>Yumthang Valley in Sikkim. ... </h2><h2>Tawang in Arunachal Pradesh.</h2>

Mazyrski [523]2 years ago

6 0

Answer:

$x=1,\: x=2$

Step-by-step explanation:

To be honest, you don't need the quadratic formula as you can just factor the polynomial after setting it equal to 0:

$x^2-3x=-2\\\\x^2-3x+2=0\\\\(x-1)(x-2)=0\\\\x=1,\: x=2$

If you really need to use the quadratic formula, here's the process:

$ax^2+bx+c=0\\\\x^2-3x+2=0\\\\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\frac{-(-3)\pm\sqrt{(-3)^2-4(1)(2)}}{2(1)}\\\\x=\frac{3\pm\sqrt{9-8}}{2}\\\\x=\frac{3\pm\sqrt{1}}{2}\\\\x=\frac{3\pm1}{2}\\x_1=\frac{3-1}{2}\\ \\x_1=\frac{2}{2}\\\\x_1=1\\\\x_2=\frac{3+1}{2}\\\\x_2=\frac{4}{2}\\ \\x_2=2$

You might be interested in

What term refers slope

Serga [27]

In y = mx+b, m is the term that refers to slope

hope this helps

3 0

3 years ago

-5(4b+ 7) = distributive property

vova2212 [387]

Answer:

-20b-35

Step-by-step explanation:

8 0

2 years ago

Factor completely 3a4y3 − 12a3y2 + 6a2y.

Firlakuza [10]

Step-by-step explanation:

$3a^4y^3-12a^3y^2+6a^2y=(3a^2y)(a^2y^2)-(3a^2y)(4ay)+(3a^2y)(2)\\\\=(3a^2y)(a^2y^2-4ay+2)$

5 0

3 years ago

When is it helpful to convert from point-slope to slope-intercept form?

Lena [83]

Answer:

Point slope form is to find the coordinates of the point on the line, whereas slope intercept gives you the slope plus y-intercept

Step-by-step explanation:

5 0

3 years ago

A media company wants to track the results of its new marketing plan, so the video production manager recorded the number of vie

Alisiya [41]

Answer:

$f(x)=5120(1.25)^{x}$

Step-by-step explanation:

As per the given question

As we know that

f(x) and x are related by following equation

$f(x)=a( {b})^{x}$

where

b is the common ratio

Now first we have to compute the value for b which are as follows

$\frac{6400}{5120}= 1.25$

$\frac{8000}{6400}= 1.25$

Like if we take the ratio by this method than it comes 1.25

Therefore the common ratio, b = 1.25

So,

a = 5,120

Hence, the equation which model the relationship between the number of weeks and the number of viewers is

$f(x)=5120(1.25)^{x}$

8 0

3 years ago

Read 2 more answers