Math, asked by ThomasBrainliestUser, 22 days ago

2x^2 - 7x + 3 = 0

Help me!​

Answers

Answered by nandibaruah111
4

Answer:

2x²-7x+3=0

2x²-(6+1)x+3=0

2x²-6x-x+3=0

2x(x-3)-1(x-3)=0

(2x-1)(x-3)=0

x=1/2 or x=3

Step-by-step explanation:

hope it helps☺️

Answered by Salmonpanna2022
4

Step-by-step explanation:

Given:-

2x² - 7x + 3 = 0

Solution:-

All Equation of the form of ax² + bx + c can should using the quadratic formula:

 \boxed{ \rm \mathrm{\frac{ - b± \sqrt{ {b}^{2}  - 4ac} }{2a} }}

The quadratic formula gives two solution one when ± is adding and one when it is subtracting.

2x² - 7x + 3 = 0

This equation is in standard form ax + bx + c is = 0. Substituting 2 for a, -7 for b, and 3 for c in the quadratic formula,

 \boxed{ \rm \mathrm{\frac{ - b± \sqrt{ {b}^{2}  - 4ac} }{2a} }}

 \rm \: x  = \mathrm{\frac{ -( - 7)± \sqrt{( { - 7})^{2}  - 4 \times 2 \times 3} }{2 \times 2} } \\

Square -7.

 \rm \: x  = \mathrm{\frac{ -( - 7)± \sqrt{49 - 4 \times 2 \times 3} }{2 \times 2} } \\

Multiply -4 times 2.

 \rm \: x  = \mathrm{\frac{ -( - 7)± \sqrt{49  - 8  \times 3} }{2 \times 2} } \\

 \rm \: x  = \mathrm{\frac{ -( - 7)± \sqrt{49  - 24} }{2 \times 2} } \\

Add 49 to -24.

 \rm \: x  = \mathrm{\frac{ -( - 7)± \sqrt{25} }{2 \times 2} } \\

Take the square root of 25.

 \rm \: x  = \mathrm{\frac{ -( - 7)± 5 }{2 \times 2} } \\

The opposite of -7 is 7.

 \rm \: x  = \mathrm{\frac{ 7± 5 }{2 \times 2} } \\

Multiply the denominator 2 times 2.

 \rm \: x  = \mathrm{\frac{ 7± 5 }{4} } \\

Now, solve the equation  \rm \: x  = \mathrm{\frac{ 7± 5 }{4} } when ± is plus. Add 7 to 5.

 \rm \: x =  \frac{12}{4}  \\

Divide 12 by 4.

 \rm \: x = 4 \\

Now, solve the equation  \rm \: x  = \mathrm{\frac{ 7± 5 }{4} } when ± is minus. And subtract 5 from 7.

 \rm \: x =  \frac{2}{4}  \\

Reduce the fraction 2/4 to lowest by extracting and cancelling out 2.

The equation is now solved

x = 3, x = 1/2

Answer:-

x = 1/2 = 0.5

x = 3

Similar questions