The difference between two trinomials is 5x2 + 11x − 16. if one of the trinomials is 3x2 − 2x + 7, then which expression could be the other trinomial?

Step-by-step explanation:

The first trinomial is

Let the other trinomial be P.

Then

We make P the subject to obtain,

We simplify to obtain,

Hence the other trinomial is

other trinomial is (  8x² + 9x - 9 )

Step-by-step explanation:

The difference between two trinomials is 5x² + 11x - 16.

If one of the trinomials is 3x² - 2x + 7 then we have to find the other trinomial.

Let the other trinomial is T.

Then  T - ( 3x² - 2x + 7 ) = 5x² + 11x - 16

         T = ( 5x² + 11x - 16 ) + ( 3x² - 2x + 7 )

           = 5x²  + 11x - 16 + 3x² - 2x + 7

           = ( 5x² + 3x² ) + ( 11x - 2x ) - ( 16 - 7 )

          = 8x² + 9x - 9

Therefore, other trinomial is (  8x² + 9x - 9 )

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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