Question

Helpp plz its urgent

Answer 1

Answer:

Factoring x2-3x-17

The first term is, x2 its coefficient is 1 .

The middle term is, -3x its coefficient is -3 .

The last term, "the constant", is -17

Step-1 : Multiply the coefficient of the first term by the constant 1 • -17 = -17

Step-2 : Find two factors of -17 whose sum equals the coefficient of the middle term, which is -3 .

-17 + 1 = -16

-1 + 17 = 16

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Answer 2

Answer:

x - 1

= x - 1 = 0

= x = 1

f(1) = (1)³ - 3(1) + 17

= 1 - 3 + 17

= 18- 3

= 15

so option c. 15

Answer 3

Answer:

x - 1

= x - 1 = 0

= x = 1

f(1) = (1)³ - 3(1) + 17

= 1 - 3 + 17

= 18- 3

= 15

so option c. 15