Expand (3x − 1)(x + 2)
Worked out line by line the way a teacher would write it.
Answer
| Expanded form | 3x² + 5x − 2 |
Step-by-step solution
3 steps-
1 Given\left(3 x - 1\right) \left(x + 2\right)
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2 Multiply the binomials (FOIL: First, Outer, Inner, Last)
To multiply two binomials, multiply every term of one by every term of the other: the First terms, the Outer terms, the Inner terms and the Last terms, four products in all.
\left(3 x \cdot x + 3 x \cdot 2 + (-1) \cdot x + (-1) \cdot 2\right) -
3 Multiply out and combine like terms3 x^{2} + 5 x - 2
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