Question

find the roots of quadratic equation X square + 4 x minus 3 is equals to zero by completing square method​

Answer 1

Answer:

Step-by-step explanation:

x²+4x-3=0

x^2+2.x.2+4-7=0

(x+2)²-7=0

(x+2)²-(√7)²=0

(x+2+√7)(x+2-√7)=0

Either

x=-(2+√7) Or x=-(2-√7)

Answer 2

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