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3 years ago

Please answer this Will mark brainiest

Mathematics

2 answers:

Sloan [31]3 years ago

8 0

Answer:

<h2>First question</h2>

(x + 3)( x - 4 )

Expand the terms

we have

x² - 4x + 3x - 12

x² - x - 12

<h3>Second question.</h3>

The sequence is an arithmetic sequence

U(n) = a + (n - 1)d

a = first term

d = common difference

n= number of terms

From the above sequence

a = 9

d = 6 - 9 = - 3

U(n) = 9 + (n - 1 ) -3

= 9 - 3n + 3

= 12 - 3n

Hope this helps you

qwelly [4]3 years ago

4 0

Answer:

(x + 3)( x - 4 )

Expand the terms

we have

x² - 4x + 3x - 12

x² - x - 12

Second question.

The sequence is an arithmetic sequence

U(n) = a + (n - 1)d

a = first term

d = common difference

n= number of terms

From the above sequence

a = 9

d = 6 - 9 = - 3

U(n) = 9 + (n - 1 ) -3

= 9 - 3n + 3

= 12 - 3n

Step-by-step explanation:

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