Question

Please answer these questions to me it would be a big help as am having my exams tomorrow.. ​

Answer 1

Glad to help u....

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Answer 2

Answer:

0,31/8

Step-by-step explanation:

The polynomial is x^3 +3x^2+3x+1

1)It is divided by x+1

         x+1=0

Therefore, x=-1

Substituiting,

-1^3+3*-1^2+3^-1+1=0

2)x=1/2

thus, subtitutiing,

1/8+3/4 +3/2+1=31/8

2 ) x^2-9

x^2-3^2

(a+b)(a-b)

(x+3)(x-3)

x+3=0

The, x=-3

x=3

(3,-3)

Thanks.