minta bantuan nya no 6 dan 7

no 7
2x² + 3x - 9 =0
p+q,=-b/a=-3/2
p.q = -9/2
α = 3p - 1
β =3q-1
α + β =(3p - 1 )+ (3q-1 ) = 3p+ 3q -2 = 3 (p+q) -2 =3 (-3/2) -2= -13/2
α . β =(3p - 1 ). (3q-1 ) = 9p.q -3p-3q +1 = 9pq - 3(p+q) +1 = 9 (-9/2) -3(-3/2) +1
-81/2+9/2+2/2 =-70/2 = -35
x²+ (α + β)x + α . β = x² -13/2 x -35 (kalikan -2)
-2x² + 13x + 70=0
jawab E