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2 years ago

Please help meee!!!!

Mathematics

2 answers:

Alex2 years ago

6 0

Answer:

a) 5x-1

b) 9x+2

c) 5x+6

Step-by-step explanation:

a) (1+2x)-(2-3x) =

2x+1+3x-2=

5x-1

--------------------

b) (-3+5x)-(-4x-5)=

5x+4x-3+5=

9x+2

----------------------

c) (x+1)-(-4x-5)=

x+1+4x+5=

5x+6

denis-greek [22]2 years ago

3 0

Answer:

Step-by-step explanation:

A) (1+2x)-(2-3x)=

3x 1x = 2x

B) (-3+5x)-(-4x-5)

2x 1x = 1x

C) (x+1)-(-4x-5)

1x 1x x

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Answer:

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

What is the vertex of the graph of the function below? y = x2 + 8x + 12

Vera_Pavlovna [14]

Hello,

$The\,\,formula\,\,for\,\,the\,\,vertex\,\,of\,\,a\,\,quadratic\,\,equation\,\,is: \\ V=( -\frac{b}{2a},f(-\frac{b}{2a}) )$

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3 years ago

I’m confused someone explain please

Naya [18.7K]

Answer:

3(x - 12)(x + 2)

Step-by-step explanation:

Given

3x² - 30x - 72 ← factor out 3 from each term

= 3(x² - 10x - 24) ← factor the quadratic

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (- 10)

The factors are - 12 and + 2 , since