Berapa nol dari persamaan kuadrat x ^ 2 + 5x = -6?

Menjawab:

Nol pada # x = -2 # dan # x = -3 #

Penjelasan:

# x ^ 2 + 5x = -6 #

#hArrcolor (putih) ("XXX") x ^ x + 5x + 6 = 0 #

#hArrcolor (putih) ("XXX") (x + 2) (x + 3) = 0 #

antara

#color (white) ("XXX") (x + 2) = 0color (white) ("XX") rarrcolor (putih) ("XX") x = -2 #

atau

#color (white) ("XXX") (x + 3) = 0color (putih) ("XX") rarrcolor (putih) ("XX") x = -3 #