Terrancea1 Terrancea1

07-12-2019
Mathematics

contestada

what are the solutions of x^2=8-5x?

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MathPhys MathPhys

07-12-2019

Answer:

x = (-5 ± √57) / 2

Step-by-step explanation:

x² = 8 − 5x

x² + 5x − 8 = 0

Solve with quadratic formula:

x = [ -b ± √(b² − 4ac) ] / 2a

x = [ -5 ± √(25 − 4(1)(-8)) ] / 2

x = (-5 ± √57) / 2

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