Question

${x }^{2} + 2x - 5 = 0$
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Answer 1

x² + 2x - 5 = 0

x² + 2x = 5

x[x + 2] = 5

Answer 2

Step-by-step explanation:

x^2-2x-5=0

D = b^2-4ac

D = (-2)^2-4×1×(-5)

D = 4+20

D = 24

real and distinct roots

x =( -b+-√D)/2

x =( 2+-√24)/2

x = 2(1+-√6)/2

x = 1+√6 , 1-√6