3 years ago

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

Mathematics

1 answer:

AnnZ [28]3 years ago

7 0

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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