Question

x^2_4x+5=0 solve by quadratic formula

Answer 1

Answer :

• We are solving it through quadratic formula .
• For finding x
• It is a complex question but once you understand the explanation , It will be easy for you.

$x ^ { 2 } -4x+5=0$

$x=\dfrac{-\left(-4\right)±\sqrt{{4}^{2}-4\times 5}}{2}$

$x=\dfrac{-\left(-4\right)±\sqrt{16-4\times 5}}{2}$

$x=\dfrac{-\left(-4\right)±\sqrt{16-20}}{2}$

$x=\dfrac{-\left(-4\right)±\sqrt{-4}}{2}$

$x=\dfrac{-\left(-4\right)±2i}{2}$

$x=\dfrac{4±2i}{2}$

$x=\dfrac{4+2i}{2}$

x=2+i

$x=\dfrac{4-2i}{2}$

x=2-i

Thus, we can consider the value of x,

• x=2+i

• x=2−i

Thank you !! :D

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