tolong kakKETERANGAN :PK = Persamaan kuadrat• = × (kali).... Question from @Fyan2000

October 2022 2 12 Report

tolong kak

KETERANGAN :
PK = Persamaan kuadrat
• = × (kali)

septianyuanto

Jawab:

Penjelasan dengan langkah-langkah:

Pakai rumus ABC

x = $\frac{-11+-\sqrt{11^2 -4(-3) .10} }{2(-3)}$

x = $\frac{-11+-\sqrt{241} }{-6}$

x₁ = $\frac{11-\sqrt{241} }{6}$

x₂ = $\frac{11+\sqrt{241} }{6}$

a) 22/6

b) $\frac{11^2 - (\sqrt{241})^2 }{6.6}$ a² - b² = (a+b) (a-b)

(121 - 241)/ 36 = -10/3

0 votes Thanks 1

Fyan2000 makasih kak

Duone

Penyelesaian:

-3x²+11x+10

Saya pakai cara cepat

x1+x2=-b/a

x1.x2=c/a

-----------------

x1+x2=-11/(-3)=11/3=3⅔

x1.x2=10/-3=-3⅓

-----------------

$\boxed{ \colorbox{black}{ \sf{ \color{lightgreen}{ answered\:by\:Duone}}}}$

1 votes Thanks 1

Fyan2000 kak mau tanya / kayak gini maksudnya dibagi atau pecahan kak

Fyan2000 makasih kak

Duone pecahan.

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