Quadratic equation by factoring.
x² + 2x = 15
need po solution.
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Quadratic equation by factoring.
x² + 2x = 15
need po solution.
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Answer:
[tex]x = - 5 \: \: \: \: or \: \: \: x = 3[/tex]
Step-by-step explanation:
[tex] {x}^{2} + 2x = 15 \\ {x}^{2} + 2x - 15 = 0 \\ (x + 5)(x - 3) = 0 \\ x + 5 = 0 \: \: \: \: \: \: \: \: \: or \: \: \: \: \: \: \: \: x - 3 = 0 \\ x = - 5 \: \: \: \: \: \: \: \: \: \: \: \: \: x = 3[/tex]
Answer:
x= 3
x= -5
Step-by-step explanation:
no explanation