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3 years ago

YO PLZ HELP!! MARKING BRAINIEST!!

Mathematics

1 answer:

Yuliya22 [10]3 years ago

8 0

Answer:

x = 26, 16

Step-by-step explanation:

( x-21) ^2 = 25

Take the square root of each side

sqrt(( x-21) ^2) = ±sqrt(25)

x-21 = ±5

Add 21 to each side

x-21+21 = 21±5

x = 21±5

x = 21+5 and x = 21-5

x = 26, 16

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