Question

Solve for x in the equation 2x^2 - 5x + 1 =3

Answer 1

Answer:

$x=2.851,-0.351$

Step-by-step explanation:

Given : Equation $2x^2-5x+1=3$

To find : Solve for x in the equation ?

Solution :

Equation $2x^2-5x+1=3$

Subtract 3 both side,

$2x^2-5x+1-3=3-3$

$2x^2-5x-2=0$

Solve by quadratic formula,

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Here, a=2,b=-5,c=-2

$x=\frac{-(-5)\pm\sqrt{(-5)^2-4(2)(-2)}}{2(2)}$

$x=\frac{5\pm\sqrt{25+16}}{4}$

$x=\frac{5\pm\sqrt{41}}{4}$

$x=\frac{5+\sqrt{41}}{4},\frac{5-\sqrt{41}}{4}$

$x=2.851,-0.351$

Therefore, The value of x are $x=2.851,-0.351$

Answer 2

The answer is x plus or minus 5 minus square root 41 all over 4