6. What are all real solutions solutions to the equation Vr2 +1 = -3 a) no real solution b) ±v26 c) ±V27 d) ±v10 e) ±v8

College Algebra (MindTap Course List)
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Author:R. David Gustafson, Jeff Hughes
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Chapter6: Linear Systems
Section6.7: Graphs Of Inequalities
Problem 8SC
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6. What are all real solutions solutions to the equation
Vr2 +1 = -3
a) no real solution
b) ±v26
c) ±V27
d) ±V10
e) ±V8
Transcribed Image Text:6. What are all real solutions solutions to the equation Vr2 +1 = -3 a) no real solution b) ±v26 c) ±V27 d) ±V10 e) ±V8
For reference, the patterns are:
difference of squares
x2 - a? = (x - a)(x + a)
x - a = (x - a)(x² + ax + a?)
x' + a° = (x + a)(x? - ax + a)
difference of cubes
sum of cubes
Assume that i denotes the imaginary unit, where i? = -1., e denotes the natural constant (= 2.72)
Continuous compounding model: f(t) = Pet
Discrete compounding model: (t) = P(1+)nt
-b±/b²-4ac
2a
Quadratic formula: If 0 = ax² + bx + C, then
Transcribed Image Text:For reference, the patterns are: difference of squares x2 - a? = (x - a)(x + a) x - a = (x - a)(x² + ax + a?) x' + a° = (x + a)(x? - ax + a) difference of cubes sum of cubes Assume that i denotes the imaginary unit, where i? = -1., e denotes the natural constant (= 2.72) Continuous compounding model: f(t) = Pet Discrete compounding model: (t) = P(1+)nt -b±/b²-4ac 2a Quadratic formula: If 0 = ax² + bx + C, then
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