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3 years ago

If f(x) = 3x2 - x, find f(-2). 10 14 38

2 answers:

8 0

'Ello.

Just plug in the values.

f(-2) = 3(-2)^2 - (-2) {Equation}
f(-2) = 3(4) - (-2) {Multiply}
f(-2) = 12 - (-2) {The signs become a positive; add}
f(-2) = 14 {Answer}

You're welcome.

mojhsa [17]3 years ago

6 0

f(x) = 3x^2-x

F(-2)

replace x with -2

3(-2)^2 - -2 =

3*4 +2 = 14

Answer is 14

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3 years ago

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2 years ago

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3 years ago

Rewrite the subtraction number sentence as an addition number sentence.<br>5- (-2)<br>

GrogVix [38]

Answer:

5 + 2

Step-by-step explanation:

We have to rewrite the given statement in addition form.

The integers have property of:

Negative(-) Negative(-) = Positive(+)

Positive(+) Positive(+) = Positive(+)

Positive(+) Negative(-) = Negative(-)

Negative(-) Positive(+) = Negative(-)

The given statement is:

5-(-2)

Since we have two negative together, it is converted into a positive.

Thus, the given statement can be written in positive form as

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3 years ago