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3 years ago

Explain the differnce between -3^4 and (-3)^4

Mathematics

2 answers:

Nikitich [7]3 years ago

7 0

Answer:

${ - 3}^{4} = - (3 \times 3 \times 3 \times 3) \\ {( - 3)}^{4} = ( - 3 \times - 3 \times - 3 \times - 3)$

galina1969 [7]3 years ago

5 0

The difference is that (-3)^4 has a negative 3 with parenthesis around it, which means that if it was in PEMDAS, you would work that out first.

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X2 + 8x + 19 = 0 What is the equivilent that results from completing the square?

IrinaVladis [17]

Answer:

$(x+4)^2+3=0$

Step-by-step explanation:

Hey there!

Standard form is what this equation is in

Standard form is this: $ax^2+bx+c$

So order to complete the square, you need to take the $b$ term out of the equation, divide it by two, and then square it

In this case, the $b$ term is 8

We need to divide 8 by 2 ---> 4

Then square 4 ---> 16

So now you should add 16 to both sides

$x^2+8x+16+19=16$

Now you can simplify the LHS

$(x+4)^2 +19=16$

Now you subtract 16 from both sides

$(x+4)^2+3=0$

So this is as far as you can go since you cannot take the square root of a negative number

5 0

2 years ago

The midpoint of AB is M(0,6). If the coordinates of A are (-3, 4), what are

Korolek [52]

Answer:

B(3,8)

Step-by-step explanation:

M(0,6) A(-3,4) B(x,y)

0= $\frac{-3+x}{2}$ 6= $\frac{4+y}{2}$

0=-3+x 12=4+y

x=3 y=8

B(3,8)

3 0

4 years ago

mr.smith wants to arrange the 24 desks in his classroom into a ractangular array. complete the table to show three different arr

zlopas [31]

Three possible ways:
8×3
4×6
and
2×12

4 0

3 years ago

Read 2 more answers

What is the value of x in the equation 1/3x + 7 = -2

Dmitriy789 [7]

The value of x is -27

1/3(-27) + 7 = -2

-9 + 7 = -2

-2 = -2

Hope this helps!

5 0

3 years ago

I NEED HELP!!

Bess [88]

<h2>Answer:</h2>

4x - 6 + 2x = 3(2x - 2)

4x - 6 + 2x = 6x - 6

[ both sides - 6 cancel each other ]

4x + 2x = 6x

6x = 6x

[ both sides 6x cancel each other ]

0 = 0.

4 0

3 years ago

Read 2 more answers

Explain the differnce between -3^4 and (-3)^4​

Explain the differnce between -3^4 and (-3)^4