Question

TOLONG jawab pake cara soal no 9 ini
Pake cara..pake cara

Answer 1

Karena basisnya sudah sama maka tinggal diambil pangkatnya saja
x+5=2x-3
5+3=3x
8=3x
x=8/3
hp nya {8/3}

Answer 2

1) x + 5 = 2x - 3 => x = 8

2) 2x^2 - 3x - 3 = 0
x = (-b ± √(b^2 - 4ac))/2a = (3 ± √33)/4

3) 2x^2 - 3x - 3 = 1
2x^2 - 3x - 4 = 0
x = (-b ± √(b^2 - 4ac))/2a = (3 ± √41)/4

4) 2x^2 - 3x - 3 = -1
2x^2 - 3x - 2 = 0
(2x + 1)(x - 2) = 0
x = -1/2 atau x = 2
Untuk x = -1/2
x + 5 = -1/2 + 5 = 9/2 => (-1)^(9/2) = -1
2x - 3 = 2(-1/2) - 3 = -4 => (-1)^(-4) = 1
Krn hasilnya berbeda jd x = -1/2 tidak memenuhi
Untuk x = 2
x + 5 = 2 + 5 = 7 => (-1)^7 = -1
2x - 3 = 2(2) - 3 = 1 => (-1)^1 = -1
Jadi x = 2 memenuhi

HP = {(3 - √41)/4, (3 - √33)/4, 2, (3 + √33)/4, (3 + √41)/4, 8}