Tolong donk soal matematika ini
Jawab:
33. Persamaan kuadrat 2 kali akar akar 2x² + 5x + 2= 0
2( 1/2 x)² + 5 (1/2 x) + 2 = 0
2 (1/4) x² + 5/2 x + 2 =0
1/2 x²+ 5/2 x + 2 = 0 . . . kalikan 2
x² + 5x + 4= 0
34. f(x) = px² -(3 + p)x + 3
menyinggung sumbu x , D= 0
b² -4ac = 0
(-3 - p)² - 4(p)(3) =0
9 + 6p + p² -12 p = 0
p² - 6p + 9 = 0
(p- 3)² =0
p = 3
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