Question

द्विघात समीकरण x2 + 7x + 10 के मूलो का योग ज्ञात
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Answer 1

Answer:

x^2+7x +10 =0

or,x^2+(2+5)x +10 =0

or, x^2 + 2x+5x +10 =0

or, x (x +2) + 5(x+2) =0

or, ( x+2) (x+5) =0

then, x+2 =0

or, x = -2

x+5 =0

or, x = -5

hence, the required solution of x =-2 , -5