3 years ago

Using the quadratic formula to solve 2x2=4x-7 , what are the values of x?

Mathematics

1 answer:

Firdavs [7]3 years ago

8 0

Answer: no solution

Step-by-step explanation:

2x2=4x-7

4x=4x−7

0=−7

Since 0=−7 is false, the answer is no solution.

You might be interested in

What is the solution of -5x > 25? <br> a. x > -5 <br> b. x 5 <br> d. x < 5

devlian [24]

The solution possible can be correct by dividing both sides by -5 ;Sooo x>-5.....

5 0

2 years ago

The coordinates of the endpoints of line segment C D are C(3, 8) and D(6, -1). Express the length of line segment C D in simples

8_murik_8 [283]

$\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
C&({{ 3}}\quad ,&{{ 8}})\quad 
% (c,d)
D&({{ 6}}\quad ,&{{ -1}})
\end{array}\qquad 
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
CD=\sqrt{(6-3)^2+(-1-8)^2}\implies CD=\sqrt{3^2+(-9)^2}
\\\\\\
CD=\sqrt{9+81}\implies CD=\sqrt{90}\quad 
\begin{cases}
90=2\cdot 3\cdot 3\cdot 5\\
\qquad 2\cdot 3^2\cdot 5\\
\qquad 10\cdot 3^2
\end{cases}
\\\\\\
CD=\sqrt{10\cdot 3^2}\implies CD=3\sqrt{10}$

3 0

2 years ago

The number of people in an auditorium can be described by 9^3 how many people are in the auditorium

Advocard [28]

9^3
729
729 people

Answer: 729 people

8 0

2 years ago

Read 2 more answers

The freezing point of a certain liquid isn't -7 degrees. Another liquid freezes at -12 degrees. What is the difference between t

Degger [83]

The answer is 12-7 which is 5

7 0

2 years ago

Where are earthquakes most likely to occur?

bonufazy [111]

Most earthquakes occur along the edge of the oceanic and continental plates. So, when they slide past each other. Many think it's when they pull apart but that has mixed results.

5 0

2 years ago