Question

If B = x - 1 and A = 3x² - x + 1, find an expression that equals 2B – 2A in standard form.

Answer Attempt 1 out of 2
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Answer 1

To find the expression 2B - 2A in standard form, substitute the given values for B and A, simplify, and combine like terms.

Step-by-step explanation:

To find an expression that equals 2B - 2A in standard form, we substitute the given values for B and A.

We know that B = x - 1 and A = 3x² - x + 1.

Substituting these values into the expression, we get:

2B - 2A = 2(x - 1) - 2(3x² - x + 1)

Simplifying further:

2B - 2A = 2x - 2 - 6x² + 2x - 2

Combining like terms:

2B - 2A = -6x² + 4x - 4

Therefore, the expression that equals 2B - 2A in standard form is -6x² + 4x - 4.

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