YourAverageFangirl YourAverageFangirl

17-02-2021
Mathematics

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What are the solutions of the equation (x−13)2=400?

x=±20
x=±7
x=±33
x=−7 and x=33

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unicorn3125 unicorn3125

21-02-2021

Answer:

x = −7 and x = 33

Step-by-step explanation:

[tex](x-13)^2=400\\\\ (x-13)^2=(\pm20)^2\\\\x-13=20\quad\vee\quad x-13=-20\\\\x=33\qquad\vee\qquad x=-7[/tex]

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