Summative Test_2024-2025

What are the factors of x² + 6x – 72?

                                                                          

•    (x – 72) (x + 5)  

• (x – 6) (x + 12)

• (x – 10) (x + 9)  

• (x – 4) (x + 18)

What will be the remainder in the operation?           

                                                                                                                                       

• -556   

•   -59

• 56    

•   569

If x + 3 is a factor of x³ + 2x² – 9x – 18, what are the other factors?

                                                                              

• (x + 2) (x – 3)  

• (x – 2) (x + 3)    

•     (x + 2) (x + 3)

• (x – 1) (x + 6)

What are the real roots of the equation x³ + 5x² – 4x – 20 = 0?

                                                                                                          

• {-5, -2, 2}

• {-5, 2, 5}     

• {-5, -2, 5}

• {-2, 2, 5}

What is the sum of the terms of an arithmetic sequence from a₁ = 9 to a₉ = 81?

                                                                                                                                           

• 360

•    405  

• 450

• 630

Which of the following is NOT a root of the polynomial equation x³ + 5x² – 9x – 45 = 0?

                                                                                                                                                  

• -5

•        -3  

•   3

• 5

To get the next terms in the geometric sequence 1, 2, 4, 8, …, we ________________.

                                                                                  

                                                                   

• add a constant ratio       

• multiply a common ratio

• add a common difference   

• multiply a common difference

What is the common difference of the sequence -40, -22, -4, 14, ….?

                                                                                                                                          

• -18

•     -12  

•   18

• 12   

The leading term in this polynomial expression 128x + 2x⁵ – 40x³ is ________.

                                                                                                                                                         

• 128x     

•     2x⁵    

•    128  

• 2

Which of the following is a polynomial expression to the 4^th degree?

                                       B. 4p⁴ -                                 

•   4m² + 4m – 8

•    – 4w³ + w² + 4 

•    4z⁴ – 8z³ + z² + 4

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