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2 years ago

What expression are equivalent to -56z + 28

Mathematics

1 answer:

sveta [45]2 years ago

8 0

Answer:

-28(2z - 1)

Step-by-step explanation:

Looking at the coefficients -56 and 28 in -56z + 28, we see that -28 is common to both and can be factored out:

-56z + 28 = -28(2z - 1).

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I need to know how to do the answer and why that’s the anwer

Pavel [41]

Ok so the answer is
$4 {x}^{2}$

so we multiply numbers that have the same variable

$2 {x}^{3} \: \: \times {2x}^{ - 1} \\ \\$
multiply 2 x 2

$2 \times 2 = 4$
then multiply the exponents

$x ^{3} \times x ^{ - 1}$
multipling like this will look like addition.
${x}^{3} \times {x}^{ - 1} = {x}^{2}$
so in other words you could do it like this too
${x}^{3} + {x}^{ - 1} = {x}^{2}$
now add the exponent with 4
$4 + {x}^{2} = 4x ^{2}$

now for the last part
${y}^{3} + {y}^{ - 3} = 0$
because -3 and 3 added together make 0
$0 + 4 {x}^{2} = 4 {x}^{2}$
I hope this help(it looks complicated but it's very easy and I hope I helped you out)

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2 years ago

Find the value: cos -1 ( - √3/2 )

Natasha2012 [34]

Answer:

The value is undefined.

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3 years ago

Wut is the answer of -7y+1= -27 step by step

Natali5045456 [20]

Answer:

$y=4$

Step-by-step explanation:

$-7y+1=-27$

Subtract 1 from both sides:

$-7y+1-1=-27-1$

$-7y=-28$

Divide both sides by -7:

$\frac{-7y}{-7}=\frac{-28}{-7}$

$y=4$

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