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Using the section of the graph shown, which of
these potential roots of the function should you
test first?
f(x) = 2x³-9x² - 6x + 40

Sagot :

roshansharma700

Step-by-step explanation:

STEP1:Equation at the end of step 1

(((2 • (x3)) + 32x2) - 6x) - 40

STEP 2 :

Equation at the end of step2:

((2x3 + 32x2) - 6x) - 40

STEP3:Checking for a perfect cube

 3.1    2x3+9x2-6x-40  is not a perfect cube

Trying to factor by pulling out :

 3.2      Factoring:  2x3+9x2-6x-40 

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  -6x-40 

Group 2:  2x3+9x2 

Pull out from each group separately :

Group 1:   (3x+20) • (-2)

Group 2:   (2x+9) • (x2)

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