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Brittany
Mathematics
14 March, 23:15
What is the answer to the equation (x-5) ^2=40
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Alia James
14 March, 23:18
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x^2 - 10x - 15 = 0
(don't know how far you want me to go)
Step-by-step explanation:
(x - 5) ^2 = 40
(expand the brackets)
(x - 5) (x - 5) = 40
x^2 - 5x - 5x + 25 = 40
x^2 - 10x + 25 = 40
x^2 - 10x - 15 = 0
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