Question

(6:d+1)=36(7d+2)




Plis jawab,yang bisa jawab dapet 100 poin looo...

Answer 1

6/d+1=252d+72
6/d×-252d=72-1
-1512/d=71
d=71/1512

Answer 2

(6/(d+1)) = 36(7d+2) 
       6/36 = (d+1)(7d+2) 
         1/6 = 7d² + 9d + 2
            1 = 42d² + 54d + 12
            0 = 42d² + 54d + 11

rumus abc:
x₁ = (-b + √b²-4ac) / 2a
    = (-54 + √2916 - 1848) / 2(42)
    = (-54 + √1068) / 84
    = (-54 + 2√267) / 84
    = (-27 + √267)/42

x₂ = (-b - √b²-4ac) / 2a
    = (-54 - √2916 - 1848) / 2(42)
    = (-54 - √1068) / 84
    = (-54 - 2√267) / 84
    = (-27 - √267)/42