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charle [14.2K]
2 years ago
5

State the factoring rule for difference of two squares a2-b2

Mathematics
1 answer:
ludmilkaskok [199]2 years ago
4 0
<h3>Answer:  a^2 - b^2 = (a-b)(a+b)</h3>

The order of the factors does not matter.

So (a-b)(a+b) is the same as (a+b)(a-b)

This is known as the difference of squares factoring rule.

You can FOIL out (a-b)(a+b) and you'd get a^2+ab-ab-b^2. Note how the ab terms cancel leaving us with a^2-b^2. This confirms we have the correct factorization.

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What is the value of n in the equation 1/2(n – 4) – 3 = 3 – (2n + 3)?
Travka [436]
Distribute 1/2 to <span>(n – 4):

</span>\frac{1}{2} \times n = \frac{1}{2}n
\frac{1}{2} \times -4 = -2
<span>
Subtract (2n + 3):

</span>- (2n + 3) = -2n -3
<span>
Your equation should now look like this:

</span>\frac{1}{2}n - 2 - 3 = 3 - 2n - 3
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Combine like terms on both sides:

</span>-2 - 3 = -5
3 - 3 = 0
\frac{1}{2}n - 5 = -2n
<span>
Subtract 1/2n from both sides:

</span>-5 = -\frac{5}{2}n
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Divide both sides by -5/2 to get n by itself:

</span>n = 2
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The value of n is 2.</span>
8 0
3 years ago
Read 2 more answers
What is the difference of the two expressions shown below (3/4X+2)-(1/4x+5). Explain why
Nostrana [21]

Answer:

  • D. 1/2x - 3

Step-by-step explanation:

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5 0
2 years ago
What is the lowest number 588 can be multiplied by so that the result is a squared number?
Keith_Richards [23]
The lowest number is  3.

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1,764  =  (42) squared

I don't know an easy way to do it.  I just slogged through it one-by-one ...
I tried  2 , then I tried  3  and I didn't have to go any farther.
You could have done the same thing.  The difference between us is that
I'm willing to work on it just for fun, whereas you're not willing to work on it
even for homework.  That's why I became good in math and you might not.
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3 years ago
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Otrada [13]

Answer: C

Step-by-step explanation:

7 0
2 years ago
Andres is a baker He baked 3240 cookies in 1 week He placed the cookies in boxes containing 9 cookies each What was the total nu
Nookie1986 [14]

3420/9=380 He used 380 boxes in his first week.

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