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Korolek [52]
3 years ago
5

What is the discriminant of the polynomial below? 2x^2+3x-7

Mathematics
1 answer:
zysi [14]3 years ago
6 0

Answer:

Step-by-step explanation:

2x2+3x-7

the discriminant is : b²- 4ac   a=2   b=3  c= -7

3²- 4(2)(-7)   .... continu

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3 years ago
Factor completely 3x^4 - 3x ^3 - 18x ^2. Which of the following is one of the factors?
Otrada [13]

Answer:

3x^4 - 3x ^3 - 18x ^2=3x^2(x+2)(x-3).

Step-by-step explanation:

The expression 3x^4 - 3x ^3 - 18x ^2 consists of three terms:

  1. 3x^4;
  2. -3x^3;
  3. -18x^2.

These three terms have common factor 3x^2. Thus,

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Consider the expression x^2-x-6. You can rewrite it as

x^2-x-6=x^2+2x-3x-6=x(x+2)-3(x+2)=(x+2)(x-3).

The whole expression takes look

3x^4 - 3x ^3 - 18x ^2=3x^2(x+2)(x-3).

7 0
3 years ago
What is the solution of the system?<br> y=x^2-4x+5<br> Y=-2+8
Nataly_w [17]
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5 0
4 years ago
The total cost to fix your bike is $45. The parts cost
hoa [83]

Answer:

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35 = 7x

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3 0
3 years ago
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