Expand 3(x + 2)(x − 1)
Worked out line by line the way a teacher would write it.
Answer
| Expanded form | 3x² + 3x − 6 |
Step-by-step solution
3 steps-
1 Given3 \left(x + 2\right) \left(x - 1\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(x \cdot 3 x + x \cdot 6 + (-1) \cdot 3 x + (-1) \cdot 6\right) -
3 Multiply out and combine like terms3 x^{2} + 3 x - 6
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