0
x2 + 5x - 15 = 0; a = 1, b = 5, and c = -15
x = [-b ± √(b2 - 4ac)]/(2a) the quadratic formula
x = [-5 ± √(52 - 4*1*-15)]/[2(1)] = [-5 ± √(25 + 60)]/2 = (-5 ± √85)/2
x = (-5 + √85)/2 or x = (-5 - √85)/2.
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Continue Learning about Math & Arithmetic
How many squer feet is one jereb?
20000
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Infinitely many.
How many solutions are there with x equals 8 and y equals 5?
1
How many solutions does an equation have when you isolate the variable and it equals constant?
As many solutions as there are points in the domain.
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None.
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