Question

plese do all the questions
please:-​

Answer 1

1] 2[3]³ - 5[2]² - 4[3] + 3

 54-45-12+3

 54-45-9

 9-9

= 0

Hence verified

2] 0 beacuse they graph does not touch the x axis

3] 2[3]² + 3 +k = 0

   21 + k = 0

    k = -21

4] 2[-3]² + 5[-3] + 3

   18 - 15 + 3

    3 + 3 ≠ 0

Hence -3 is not the zero of the polynomial

   

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