kenzie7860 kenzie7860

18-09-2020
Mathematics

contestada

2x^2-50=x^2-1
solve by factoring
step by step please

Respuesta :

samkr14 samkr14

18-09-2020

Answer:

x = -7, 7

Step-by-step explanation:

2x²-50 = x² -1
2x²-x²-50+1 = 0
x²-49 = 0
(x+7)(x-7)
x = -7, 7

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