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(2x +6)² - 2 (2x + 6) - 8 = 0
((2x +6) - 4) ((2x + 6) + 2) = 0
(2x + 2) (2x + 8) = 0
2x + 2 = 0 dan 2x + 8 = 0
2x = -2 2x = -8
x = -1 x = -4
Hp = {-4 , -1}
2. 5x² - 3x + 25 = 0
αβ = c / a α + β = -b/a
= 25 / 5 = - (-3) / 5
= 5 = 3/5
α²β + αβ² = αβ (α + β)
= 5 . 3/5
= 3
1. (2x +6)² - 2 (2x + 6) = 8
(2x +6)² - 2 (2x + 6) - 8 = 0
((2x +6) - 4) ((2x + 6) + 2) = 0
(2x + 2) (2x + 8) = 0
2x + 2 = 0 dan 2x + 8 = 0
2x = -2 2x = -8
x = -1 x = -4
Hp = {-4 , -1}
2. 5x² - 3x + 25 = 0
αβ = c / a α + β = -b/a
= 25 / 5 = - (-3) / 5
= 5 = 3/5
α²β + αβ² = αβ (α + β)
= 5 . 3/5
= 3
Semoga mmbntu yaak^^ maaf klo slah yaa