3 years ago

(x+3)(x-5)-(4x+1)(1-4x)=17x^

Mathematics

1 answer:

Greeley [361]3 years ago

6 0

Answer: $\boxed{Sol=\{\dfrac{7}{4} \}}\\$

I suppose 17x^ means 17x².

and that we must solve the equation.

Step-by-step explanation:

$(x-3)(x-5)-(4x+1)(1-4x)=14x^2\\\\x^2-3x-5x+15+(4x+1)(4x-1)=17x^2\\\\x^2-8x+15+16x^2-1=17x^2\\\\-8x+14=0\\\\8x=14\\\\x=\dfrac{7}{4} \\\\\boxed{Sol=\{\dfrac{7}{4} \}}\\$

You might be interested in

Drag each equation to show if it could be a correct first step to solving the equation

Vlad [161]

Tell me what the answer

4 0

3 years ago

Read 2 more answers

Rank the following tools for measuring length from those that give the least precise results to the most precise results.

saw5 [17]

Answer:

option 3,4,2,1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Ms. Brown predicted that 25% of the days in January would have temperatures below 45°F. How many days does she predict will have

Dmitriy789 [7]

The answer is 7.75. Since there can not be 7.75 days, you can round that to 8 and say that it's almost 8 days. Hope this helps!

8 0

3 years ago

Find the center and radius of the circle whose equation is x 2 + y 2 + 10x − 1

Margaret [11]

we conclude that the center of the circle is the point (-5, 0).

<h3>How to find the center of the circle equation?</h3>

The equation of a circle with a center (a, b) and a radius R is given by:

$(x - a)^2 + (y - b)^2 = R^2$

Here we are given the equation:

$x^2 + y^2 + 10x - 1 = 0$

Completing squares, we get:

$x^2 + 10x + y^2 = 1$

Now we can add and subtract 25 to get:

$x^2 + 10x + 25 - 25 + y^2 = 1\\\\(x + 5)^2 -25 + y^2 = 1\\\\(x + 5)^2 + (y - 0)^2 = 26$

Comparing that with the general circle equation, we conclude that the center of the circle is the point (-5, 0).

If you want to learn more about circles:

brainly.com/question/1559324

#SPJ1

3 0

2 years ago

Divide 3 divided by 2/5 <br><br> 7<br><br> 7 1/5<br><br> 7 1/2<br><br> 8

Ksju [112]

Uhhh 0.3 or 1.2 lol hope this helps

5 0

3 years ago

Read 2 more answers