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myhomeacc32
18.11.2020 •
Mathematics
Find the unit rate demonstratied in the graph below need help asap
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Ответ:
D
Step-by-step explanation:
Given
- 2x³ - 2x² + 12x ← factor out - 2x from each term
= - 2x(x² + x - 6) ← factorise the quadratic
Consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term (+ 1)
The factors are + 3 and - 2, since
3 × - 2 = - 6 and 3 - 2 = + 1, thus
x² + x - 6 = (x + 3)(x - 2) and
- 2x³ - 2x² + 12x = - 2x(x + 3)(x - 2) → D