Question

Show that x = 1 is the root of the equation x² +4x-5=0​

Answer 1

substituting value of x given in the equation:-

x²+4x-5=0

(1)²+4(1)-5=0

1+4-5=0

5-5=0

hence proved that x=1 is the root of the given equation as it's result is 0

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Answer 2

Step-by-step explanation:

x2 +4 x -5 = 0

1*2+4*1-5 =0

1+4-5=0

5-5=0

0=0

hance -1 is the root of equation