hunterewing73 hunterewing73

26-01-2021
Mathematics

contestada

Solve each equation. Showing your reasoning. X^2-6x-20=7

Respuesta :

Parasmahata Parasmahata

26-01-2021

Answer:

x=-3,x=9

Step-by-step explanation:

x^2-6x-20-7=0

x^2-6x-27=0

x^2-(9-3)x-27=0

x^2-9x+3x-27=0

x(x-9)+3(x-9)=0

(x+3)(x-9)=0

x=-3,x=9

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