Evaluate the function

F(x)=-x2-10x

Find F(-5)

F(-5)=25

Step-by-step explanation:

Hi there!

We are given the function:

F(x)=-x²-10x

And we want to find F(-5)

If we want to find f(number), then we will be substituting that number as x into the other side of the function.

In other words, if the function is F(-3), then we would substitute -3 as x in the function, giving us -(-3)²-10(-3)

So for this, we'll substitute -5 as x in the function.

Therefore:

F(-5)=-(-5)²-10(-5)

Going with the order of operations, raise (-5) to the second power

F(-5)=-(25)-10(-5)

Now multiply 25 by -1 (the minus in front of the 25 means -1 * 25)

F(-5)=-25-10(-5)

Multiply -10 by -5

F(-5)=-25 + 50

Add the numbers together

F(-5)=25

Hope this helps!

the solution is 12x-6y

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