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3 years ago

Please solve it the answer is (a+b-2) (a-b+2) should be take out question a^2-b^2+4b-4

Mathematics

2 answers:

iVinArrow [24]3 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

Given

(a + b - 2)(a - b + 2)

Each term in the second factor is multiplied by each term in the first factor, that is

a(a - b + 2) + b(a - b + 2) - 2(a - b + 2) ← distribute the parenthesis

= a² - ab + 2a + ab - b² + 2b - 2a + 2b - 4 ← collect like terms

= a² - b² +4b - 4

lisabon 2012 [21]3 years ago

3 0

Answer:

this may help uh to get answer..

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Answer:

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3 years ago

Plz help me with this

saul85 [17]

Your answer would be the second option, (-4,5).

We can find this by substituting in each point into the equation y < |x - 3| and seeing if it is true.

For the first one you get 1 < |2 - 1|. |2 - 1| = |-1| = 1, and 1 cannot be less than itself, so this is false.

For the second one you get 5 < |-4 - 3|. |-4 - 3| = |-7| = 7, and 5 is indeed less than 7, so this is correct.

I hope this helps!

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3 years ago

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3 years ago

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spayn [35]

What is the area of the shaded region and the circle inside?

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$A_1=33,3^2\pi$
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