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Which statements are true about the fully simplified product of [tex]\((b - 2c)(-3b + c)\)[/tex]? Select two options.

A. The simplified product has 2 terms.
B. The simplified product has 4 terms.
C. The simplified product has a degree of 2.
D. The simplified product has a degree of 4.
E. The simplified product, in standard form, has exactly 2 negative terms.


Sagot :

Let's simplify the product [tex]\((b - 2c)(-3b + c)\)[/tex] step by step.

First, distribute each term in the first binomial to every term in the second binomial:

[tex]\[ (b - 2c)(-3b + c) \][/tex]

Using the distributive property, this expands to:

[tex]\[ b \cdot (-3b) + b \cdot c - 2c \cdot (-3b) - 2c \cdot c \][/tex]

Now, calculate each individual term:

[tex]\[ b \cdot (-3b) = -3b^2 \][/tex]

[tex]\[ b \cdot c = bc \][/tex]

[tex]\[ -2c \cdot (-3b) = 6bc \][/tex]

[tex]\[ -2c \cdot c = -2c^2 \][/tex]

So the expression is now:

[tex]\[ -3b^2 + bc + 6bc - 2c^2 \][/tex]

Combine like terms:

[tex]\[ -3b^2 + (bc + 6bc) - 2c^2 \][/tex]

[tex]\[ -3b^2 + 7bc - 2c^2 \][/tex]

Now, let's analyze the simplified product [tex]\(-3b^2 + 7bc - 2c^2\)[/tex]:

1. Number of terms: The simplified product has three terms: [tex]\(-3b^2\)[/tex], [tex]\(7bc\)[/tex], and [tex]\(-2c^2\)[/tex].
2. Degree of the polynomial: The highest degree of any term in the polynomial is 2, as the terms are [tex]\(-3b^2\)[/tex], which has a degree of 2, [tex]\(7bc\)[/tex], which has a degree of 2 (since [tex]\(b\)[/tex] and [tex]\(c\)[/tex] are both to the power of 1 and their sum is 2), and [tex]\(-2c^2\)[/tex], which has a degree of 2.
3. Number of negative terms: The polynomial has two negative terms: [tex]\(-3b^2\)[/tex] and [tex]\(-2c^2\)[/tex].

Given this analysis, the correct statements are:

- The simplified product has a degree of 2.
- The simplified product, in standard form, has exactly 2 negative terms.