Answer:
[tex]x = -15\\x = -5 \ \large \checkmark\\ x = -3\\x = 2\\x = 3 \ \large \checkmark \\x = 5[/tex]
Step-by-step explanation:
Note : the zero product property :
a × b = 0 ⇔ a = 0 or b = 0
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(x + 5)(x – 3) = 0 ⇔ x + 5 = 0 or x – 3 = 0
⇔ x = –5 or x = 3