" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
kudratkan kedua ruas
(x - 3)² = 3²
x² - 6x + 9 = 9
x² - 6x + 9 - 9 = 0
x² - 6x = 0
x² = 6x
x = 6
b. |8 + 2x| = 16
(8 + 2x)² = 16²
4x² + 32x + 64 = 256
4x² + 32x + 64 - 256 = 0
4x² + 32x - 192 = 0
x² + 8x - 48 = 0
(x + 12)(x - 4)= 0
x = -12 dan x = 4
c. |1 - 2x| = 9
(1 - 2x)² = 9²
1 - 4x + 4x² = 81
4x² - 4x - 80 = 0
x² - x - 20 = 0
(x + 4)(x - 5) = 0
x = -4 dan x = 5
maaf yg d soalnya nggk jelas, jdi gk bsa sya kerjakan