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Answered

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True or False: If f(x) = -3x^3 + 2(x + 2), then f(-2) = 24

Sagot :

2004froggyidn

Answer:

True

Step-by-step explanation:

When you plug in -2 for the x-values, it should be like this -3(-2)^3 + 2((-2)+2).  When using the method of PEMDAS, you want to do the parentheses/exponents first since it is in order. -2 to the power of 3 is -8 for this case.  Distribute 2 in -2 and 2 to get -4 + 4.  Obviously. they will cancel in which you are left with -3(-8).  Two negatives multiplied together equals a positive, so your final answer should be 24, in this case it is true.

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