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Ilia_Sergeevich [38]
3 years ago
13

Find the number of real number solutions for the equation. x2 + 9x + 20 = 0

Mathematics
1 answer:
fiasKO [112]3 years ago
6 0

x^2 + 9x + 20 = 0 \\ x^2+4x+5x+20=0\\ x(x+4)+5(x+4)=0\\ (x+5)(x+4)=0\\ x=-5 \vee x=-4

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