(x₁x₂)²= 25/4(c/a)² = 25/4(3m-1/2)² = 25/49m²-6m+1 /4 = 25/49m²-6m+1=259m²-6m-24 = 0 -> 3m²-2m-8=0(3m+4)(m-2)=0m = -4/3m = 22) samakan penyebut (k+2)²+8=6(k+2)k²+4k+4+8=6k+12k²-2k=0k(k-2)=0k=0 atau k=2semoga membantu :)
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(x₁x₂)²= 25/4
(c/a)² = 25/4
(3m-1/2)² = 25/4
9m²-6m+1 /4 = 25/4
9m²-6m+1=25
9m²-6m-24 = 0 -> 3m²-2m-8=0
(3m+4)(m-2)=0
m = -4/3
m = 2
2) samakan penyebut
(k+2)²+8=6(k+2)
k²+4k+4+8=6k+12
k²-2k=0
k(k-2)=0
k=0 atau k=2
semoga membantu :)
= 3m-1 / 2
(x₁.x₂)² = 25/4
(3m-1 / 2)² = 25/4
(3m-1)² / 4 = 25/4
(3m-1)² = 25
3m-1 = 5 atau 3m-1 = -5
3m= 1+5 atau 3m = 1-5
3m = 6 3m = -4
m = 2 m = -4/3
2. k+2 + (8 / k+2) - 6 = 0 --> k≠ - 2
(k+2)² + 8 - 6 (k+2) = 0
k²+4k+4 +8 - 6k-12 =0
k²-2k = 0
k (k-2) = 0
k=0 atau k-2 =0
k = 2