26-05-2016
Mathematics

contestada

Find the value of x in the equation √ x + 5 = √ x + 45.

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hglover83 hglover83

26-05-2016

√x+5 = √x+45

(√x+5)^2 = x+45
x+25+10√x = x+45
25+10√x = 45
10√x = 20
√x=2
x=4

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