is 0.3 is the root of the equation x^2-0.9=0? justify
Answers
Answered by
4
Put 0.3 = x
p(x) = 0.3
p(0.3) = (0.3)^2 - 0.9
= 0.9 - 0.9
= 0
Therefore,
0.3 is a root of the equation x^2-0.9
p(x) = 0.3
p(0.3) = (0.3)^2 - 0.9
= 0.9 - 0.9
= 0
Therefore,
0.3 is a root of the equation x^2-0.9
Answered by
2
x=0.3
(0.3)^2-0.9=0
0.09-0.9=0
-0.81 not equal to 0
hence 0.3 is not a root of equation x^2 - 0.9
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