Soal yang benar pada gambar :v
Mari kita selesaikan :)
2x³ - kx² + (5 + h)x + 3 = (2x + 3)(x - 1)²
2x³ - kx² + (5 + h)x + 3 = (2x + 3)(x² - 2x + 1)
2x³ - kx² + (5 + h)x + 3 = 2x³ - x² - 4x + 3
-kx² = -x²
kx² = x²
k = x²/x²
k = 1
.
(5 + h)x = -4x
5 + h = -4
h = -4 - 5
h = -9
..
Maka:
k + h
= 1 + (-9)
= 1 - 9
= -8
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Soal yang benar pada gambar :v
Mari kita selesaikan :)
2x³ - kx² + (5 + h)x + 3 = (2x + 3)(x - 1)²
2x³ - kx² + (5 + h)x + 3 = (2x + 3)(x² - 2x + 1)
2x³ - kx² + (5 + h)x + 3 = 2x³ - x² - 4x + 3
-kx² = -x²
kx² = x²
k = x²/x²
k = 1
.
(5 + h)x = -4x
5 + h = -4
h = -4 - 5
h = -9
..
Maka:
k + h
= 1 + (-9)
= 1 - 9
= -8