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3 years ago

Fill in the blank: _?__(x+3)=7x+21

Mathematics

2 answers:

posledela3 years ago

7 0

Answer:

The fill-in-the-blank is 7.

Step-by-step explanation:

By factoring out the greatest common factor, 7, you will get 7(x + 3).

7(x + 3) = 7x + 21

Delvig [45]3 years ago

5 0

Answer:

Step-by-step explanation:

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F(x)+x+2 g(x)=3x^2-5<br> Find (f•g) (x).

arlik [135]

Answer:

Step-by-step explanation:

Multiply the functions.

$( x + 2)(3 {x}^{2} - 5)$

${3x}^{3} + 6 {x}^{2} - 5x - 10$

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2 years ago

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agasfer [191]

Answer:

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saw5 [17]

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2 years ago

What is the sum? (2x + 4)/(x + 1) + (- x + 5)/(x + 1) (x - 1)/(x + 1) (1 - 1)/(2x + 2) (x + 9)/(x + 1) (x + 9)/(2x + 2)

butalik [34]

Answer:

Step-by-step explanation:

Since they already have a common denominator of x+1 we can add the numerators

(2x+4-x+5)/(x+1)

(x+9)/(x+1)

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2 years ago

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Vanyuwa [196]

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3 years ago