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V125BC [204]
3 years ago
5

Please can someone help? As i'm not confident this is right for factorising 4b^2 + 8b + 3 ​

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
5 0

Answer:

your answer is correct

Step-by-step explanation:

4b² + 8b + 3

Consider the factors of the product of the coefficient of the b² term and the constant term which sum to give the coefficient of the b- term.

product = 4 × 3 = 12 and sum = + 8

The factors are 2 and 6

Use these factors to split the b- term

4b² + 2b + 6b + 3 ( factor the first/second and third/fourth terms )

= 2b(2b + 1) + 3(2b + 1) ← factor out (2b + 1) from each term

= (2b + 1)(2b + 3)

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What is the equation of a line that has the same slope as y=7-2x and the same y-intercept as y=-7x-5
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Answer:

Hello!

First you will want to get both of equations into slope-intercept form.  That way, you can easily determine the y-intercept of the first equation and the slope of the second equation.  

When 2 lines have the same slope, that means they will be parallel.

y+4x-10=0 ; add 10 to each side

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Step-by-step explanation:

3 0
2 years ago
Im sped Help MEEEEE PLEASEEE
lana66690 [7]

Answer:

2x^4

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Step-by-step explanation:

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22=> 0 degree

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5x^2 + 5x + 5=> 2nd degree

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