alvarezy alvarezy

27-06-2018
Mathematics

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what are the solutions to the quadratic equation x^2-25=0

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mkryukova19 mkryukova19

27-06-2018

x² -25 = 0
We can use formula a² -b² =(a-b)(a+b)

x² - 5² =0
(x-5)(x+5)=0

x+5 =0 or x-5 = 0
x=-5 or x=5

Answer is x=-5, x=5

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