Temukan himpunan penyelesaian dari persamaan kuadrat x²+7x+10=0!

Jawaban:

x² + 7x + 10 = 0

(x + 5) (x + 2) = 0

x = -5 atau x = -2

Hp = {-5 , -2}

Penjelasan dengan langkah-langkah:

x² + 7x + 10 = 0

x = -b ±√b² – 4ac/2a

x = -7 ±√7² – 4(1)(10)/2(1)

x = -7 ±√49 – 40/2

x = -7 ±√9/2

x = -7 ± 3/2

x¹ = -7 + 3/2

x¹ = -4/2

x¹ = –2

x² = -7 -3/2

x² = -10/2

x² = –5

HP = {–5, – 2}