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NISA [10]
2 years ago
10

Devide (a2+ 7a+ 12)÷ (a+3)​

Mathematics
1 answer:
arlik [135]2 years ago
5 0

Answer:

(a - 3) • (a - 4)

Step-by-step explanation:

The first term is,  a2  its coefficient is  1 .

The middle term is,  -7a  its coefficient is  -7 .

The last term, "the constant", is  +12

Multiply the coefficient of the first term by the constant   1 • 12 = 12

Find two factors of  12  whose sum equals the coefficient of the middle term, which is   -7 .

     -12    +    -1    =    -13

     -6    +    -2    =    -8

     -4    +    -3    =    -7    That's it

Rewrite the polynomial splitting the middle term using the two factors, -4  and  -3

                    a2 - 4a - 3a - 12

Add up the first 2 terms, pulling out like factors :

                   a • (a-4)

             Add up the last 2 terms, pulling out common factors :

                   3 • (a-4)

Add up the four terms

                   (a-3)  •  (a-4)

Really hope this helps :)

           

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Answer:

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Use the graph below to estimate the solution to the system of equations shown.
Mila [183]

Answer: The second choice is answer.

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<h3>The first line (Blue One)</h3>

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<h3>The second one (Red One)</h3>

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Because there are choices, it's easy to notice.

The first one, x = -4 and almost -5 which is not right. (x is around 1 almost 2.)

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<h3>Or solve the equations.</h3>

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Substitute y=2x-8 in y=-x-3

2x-8=-x-3\\2x-8+x+3=0\\3x-5=0\\3x=5\\x=\frac{5}{3}\\(x=1\frac{2}{3})

Look at the value of x then find the answer that matches the value of x.

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6 0
3 years ago
the first four terms of a geometric progression are 2,10,50,250 a) write down the common ratio of the progression b) write down
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Answer:

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Step-by-step explanation:

The common ratio is given by

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3 0
3 years ago
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