11 12 13 14 15 16 17 18 19 20 time remaining 01:26:14 fiona wrote out the description of each step for her multiplication of the binomial and trinomial (2x – 3)(5x2 – 2x + 7). In which step did fiona make an error? Step 1 step 2 step 3 step 4
1 answer:
(2x - 3)(5x² - 2x + 7)
= 2x(5x² - 2x + 7) -3(5x² - 2x + 7) <em>multiplied using distributive property</em>
= 10x³ - 4x² + 14x -15x² + 6x - 21 <em>distributed 2x and -3</em>
= 10x³ - 19x² + 20x - 21 <em>added like terms</em>
You did not upload the image of the steps so I am not sure where fiona made the error. Hopefully, you can figure it out from the information I provided.
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