If one root of the equation …
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Sonali Aggarwal 5 years, 9 months ago
Given equation,
x^2 + 7x + k = 0 , given root -2
Substituting value of x = -2 in the equation
4 - 14 + k = 0
k = 10
Now the equation is x^2 +7 x + 10 = 0
Or x^2 + 2x + 5x + 10
= x(x + 2) + 5( x + 2)
= (x + 5)(x + 2)
x= -5, -2
,so, other value of x is -5
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