Question

Is x= 5 a solution of the equation
x^2-2x-15=0​

Answer 1

Answer:

x2-2x-15=0

For x=5 to be solution of the given quadratic equation it should satisfy the equation.

So, substituting x=5 in the given equation, we get

LHS=

${5}^{2} - 2(5) - 15$

$25 - 10 - 15$

$= >0$

=RHS

Hence x=5 is a solution of the quadratic equation.

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Answer 2

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