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3 years ago

Solve the equation. 4x2 – 8 = 56 2, –2 16, –16 8, –8 4, –4

Mathematics

2 answers:

Marta_Voda [28]3 years ago

6 0

Answer:

8,-8

Step-by-step explanation:

jok3333 [9.3K]3 years ago

5 0

Answer:

4,-4

Step-by-step explanation:

4x2-8=56 is our equation.

First we add 8 on both sides to get rid of the "-8" on our equation,we do it on both sides because when you do something on one side of an equation you have to do it on the other.
That will leave us with: 4x2=64
So we will solve our exponent: 4x2
Then we will have: 16x=64 because 4 times 4 is 16
Then we will divide by 16 on both sides to get rid of "16" in "16x"
That will leave us with: x=4 for our answer! :>
I hope this helped.
And please give me brainliest.
I am trying to get more brainliest.
Thank you!

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Evaluate x(y-z)2 for =-1,y=5,and z=

Nata [24]

Answer:

The value of $x(y-z)^2$ is -16.

Step-by-step explanation:

We need to evaluate $x(y-z)^2$ for x = -1, y = 5 and let us assume that z = 1

It can be simply done by putting the values of x,y and z in the given expression.

$x(y-z)^2=(-1)(5-1)^2\\\\=-1(4)^2$

We know that the value of 4² = 16

So,

$x(y-z)^2=16\times -1\\\\=-16$

So, the value of $x(y-z)^2$ is -16.

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3 years ago

Factor:<br><br><br>(m+2)^2−(m+2)+mn·(n+2)+2n(n+2)

bazaltina [42]

ANSWER
${(m + 2)}( {n}^{2} + 2n + m + 1)$

EXPLANATION

The given expression is

${(m + 2)}^{2} - (m + 2) + mn(n + 2) + 2n(n + 2)$

We factor to get,

$= {(m + 2)}(m + 2 - 1) +n (n + 2) (m+ 2)$

This implies that,

$= {(m + 2)}(m + 1) +n (n + 2) (m+ 2)$

We factor further to obtain,

$= {(m + 2)}((m + 1) +n (n + 2))$

or

$= {(m + 2)}( {n}^{2} + 2n + m + 1)$

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erik [133]

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3 years ago

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Ne4ueva [31]

Answer:

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Step-by-step explanation:

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2 years ago

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Vladimir79 [104]

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