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LenKa [72]
4 years ago
10

A^2-b^2+4b-4 please solve it step by step i will mark you brainlest

Mathematics
1 answer:
alex41 [277]4 years ago
3 0

Answer:

b = a + 2 or b = 2 - a

Step-by-step explanation:

Solve for b:

-4 + a^2 + 4 b - b^2 = 0

The left hand side factors into a product with two terms:

(2 + a - b) (-2 + a + b) = 0

Split into two equations:

2 + a - b = 0 or -2 + a + b = 0

Subtract a + 2 from both sides:

-b = -a - 2 or -2 + a + b = 0

Multiply both sides by -1:

b = a + 2 or -2 + a + b = 0

Subtract a - 2 from both sides:

Answer:

b = a + 2 or b = 2 - a

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Solve each equation for the given variable: <br> 4x+6+3=17
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Answer:

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7 0
3 years ago
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vazorg [7]

Answer:

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P(E) =  

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given data  P(BUS) = 0.25

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we will use probability definition we get, P( BUS) =

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