26-10-2016
Mathematics

contestada

what are the quadratic function f(b)=b^2-75?

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schoolwork12 schoolwork12

26-10-2016

b² - 75 = 0

b² = 0 + 75

b² = 75

b = + or -√75

b = + or -√(25*3)

b = + or -√25 *√3

b = + or - 5√3

b = 5 square root of 3 and b = -5 square root of 3

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