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3 years ago

I need help with -1 + (-4) + (-9), I know the answer but i need the work.

Mathematics

2 answers:

valentinak56 [21]3 years ago

6 0

Answer:

-14

Step-by-step explanation:

DedPeter [7]3 years ago

5 0

Answer:

-14

Step-by-step explanation:

-1 + (-4) + (-9)

-1 -4 -9 = -14

Note that a positive sign multiplying a negative sign in a bracket gives negative.

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juin [17]

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4 years ago

Find all solutions to the equation $x^2 - 8x = -16$.

statuscvo [17]

Answer:

x = 4

Step-by-step explanation:

x^2 - 8x = -16

Add 16 to both sides.

x^2 8x + 16 = 0

This may be the square of a binomial.

x^2 is the square of x

16 is the square of 4 and -4.

Let's check the middle term:

2ab = 2(x)(-4) = -8x

Yes, it is the square of a binomial.

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x = 4 or x = 4

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3 years ago

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butalik [34]

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Step-by-step explanation:

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