simplify : x(2x + 1 )+5 and find its value at x = (-2)

please slve t his for me my exams are comming soon....!! (^ __ ^)

Hi!

Let the given polynomial be

*p*(*x*) =*x*(2*x*+ 1) + 5.*p*(

*x*) =

*x*(2

*x*+ 1) + 5 = 2

*x*

^{2 }

*+ x +*5 (Distributive Property)

The value of

*p*(*x*) at x = (−2) is given by*p*(−2) .Putting x = (−2) in

*p*(*x*), we get*p*(−2) = 2 (−2)

^{2}+ (−2) + 5 = 2 × 4 − 2 + 5 = 8 − 2 + 5 = 11

Thus, the value of

*p*(*x*) at*x*= −2 is 11.Cheers!

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