Steps
Result
(2x - 3) (5x2 - 2X+7)
Use the distributive property to multiply
2x times each term in the trinomial.
10x3 - 4x2 + 14x
(result for this step only)
2 Use the distributive property to multiply
-3 times each term in the trinomial.
10x - 4x? + 14X - 15x² - 6x-
(result for step 1 and 2)
| 10² - 19x² + 144 - 6x-21
3 Use the addition property to combine
the x? terms.
4 Use the addition property to combine
the x terms
10x3 - 19x2 + 8X-21
In which step did Fiona make an error?
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