Question

tolong dibantu kak saya mau kumpul hari ini, soalnya ada di gambar, tolong ya kak plisss​

Answer 1

Jawaban:

a. x² - 3x  - 28 = 0

( x - 7) ( x  + 4) = 0

x -7 =0                x + 4 = 0

x = 7                   x = -4

b. x² - 5x - 14 = 0

( x - 7 ) ( x + 2 ) = 0

x - 7 = 0              x + 2 = 0

x = 7                    x = -2

#BelajarDenganBrainly

Answer 2

a)

x² - 3x - 28 = 0

(x + 4)(x - 7) = 0

x + 4 = 0   atau   x - 7 = 0

      x = -4                 x = 7

HP = {-4, 7}

 

b)

x² - 5x + 14 = 0

(x + 2)(x - 7) = 0

x + 2 = 0   atau   x - 7 = 0

       x = -2                x = 7

HP = {-2, 7}

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