Question

9x-x²-20=0..plz solve this for me...​

Answer 1

Answer: 5,4

Step-by-step explanation:by converting(×-1)

x^2-9x+20= 0

a=1 b=-9 c=20

x =-b+-√b^2-4ac/2a

=9+-√81-4×1×20/2×1

=9+-√81-80/2

=9+- 1/2

=9+1/2 9-1/2

=10/2 8/2

=5 4

Answer 2

$\mathfrak \blue{Standard\: form:-}$

➠ $x^2\: - 9x\: + 20\: =\: 0$

$\textbf{\huge{\red{Solution}} }$

$<font color= red>$

x² - 9x + 20 = 0

x² - 5x - 4x + 20 = 0

x(x - 5) -4(x - 5) = 0

(x - 5) (x - 4) = 0

$<font color= blue>$

$\mathfrak \blue{Equating\: the\: values}$

⠀⠀⠀⠀ x - 5 = 0⠀⠀⠀⠀⠀⠀⠀x - 4 = 0

⠀⠀⠀⠀➠ x = 5⠀⠀⠀⠀⠀ ⠀⠀➠ x = 4⠀⠀⠀