Titik potong sumbu x dsri persamaan f(x) = x² + 4x -21.... Question from @kakavia16

January 2023 1 9 Report

Titik potong sumbu x dsri persamaan f(x) = x² + 4x -21

Jawaban:

Titik potong sumbu x dimana f(x) = 0

x² + 4x -21 = 0

(x + 7)(x - 3) = 0

x + 7 = 0

x = -7

x - 3 = 0

x = 3

Titik potong sumbu x adalah (-7,0) dan (3,0)

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