simplify the expression 3x(x - 12x)+3x² - 2(x - 2)². which statements are true about the process and…

simplify the expression 3x(x - 12x)+3x² - 2(x - 2)². which statements are true about the process and simplified product? select three options.\nthe term -2(x - 2)² is simplified by first squaring the expression x - 2.\nthe simplified product is a binomial.\nafter multiplying, the like terms are combined by adding and subtracting.\nthe parentheses are eliminated through multiplication.\nthe final simplified product is -28x² + 8x - 8.
Answer
Explanation:
Step1: Expand expressions
First, expand $3x(x - 12x)=3x\times x-3x\times12x = 3x^{2}-36x^{2}=- 33x^{2}$. Expand $-2(x - 2)^{2}=-2(x^{2}-4x + 4)=-2x^{2}+8x - 8$ using the formula $(a - b)^{2}=a^{2}-2ab + b^{2}$. The original expression $3x(x - 12x)+3x^{2}-2(x - 2)^{2}$ becomes $-33x^{2}+3x^{2}-2x^{2}+8x - 8$.
Step2: Combine like - terms
Combine the $x^{2}$ terms: $-33x^{2}+3x^{2}-2x^{2}=(-33 + 3-2)x^{2}=-32x^{2}$. So the simplified expression is $-32x^{2}+8x - 8$.
Now let's check the statements:
- The term $-2(x - 2)^{2}$ is simplified by first squaring the expression $x - 2$ using the formula $(a - b)^{2}=a^{2}-2ab + b^{2}$, so this statement is true.
- The simplified product $-32x^{2}+8x - 8$ is a trinomial, not a binomial, so the statement "The simplified product is a binomial" is false.
- After multiplying (expanding the expressions), the like terms are combined by adding and subtracting, which is true.
- The parentheses are eliminated through multiplication (distributive property for $3x(x - 12x)$ and expanding $(x - 2)^{2}$ and then multiplying by - 2), so this statement is true.
- The final simplified product is $-32x^{2}+8x - 8$, not $-28x^{2}+8x - 8$, so this statement is false.
Answer:
The true statements are: The term $-2(x - 2)^{2}$ is simplified by first squaring the expression $x - 2$. After multiplying, the like terms are combined by adding and subtracting. The parentheses are eliminated through multiplication.