Select the correct answer.
Kalid simplified a polynomial expression as shown.
step 1
(6x3 + 8x2 - 7x) - (2x + 3)(x – 8)
(6x3 + 8x2 - 7x) - (2x3 - 16x2 + 3x – 24)
6x3 + 8x2 - 7x - 2x3 - 16x2 + 3x - 24
4x3 - 8x2 - 4x - 24
step 2
step 3
In which step did Kalid make a mistake?
OA.
step 1
OB
step 2
step 3
OD.
Kalid did not make a mistake.
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