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jok3333 [9.3K]
3 years ago
14

Which is the completely factored form of 4x2+28x+49?

Mathematics
2 answers:
zhenek [66]3 years ago
8 0

Answer:  The required factored form of the given expression is (2x+7)(2x+7).

Step-by-step explanation:  We are given to completely factor the following quadratic expression :

E=4x^2+28x+49~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We will be using the following factorization formula :

(a+b)^2=a^2+2ab+b^2.

From (i), we have

E\\\\=4x^2+28x+49\\\\=(2x)^2+2\times x\times7+7^2\\\\=(2x+7)^2\\\\=(2x+7)(2x+7).

Thus, the required factored form of the given expression is (2x+7)(2x+7).

ratelena [41]3 years ago
5 0
<span> (2x+7)(2x+7) hope this helps</span>
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Also, I attached the graph in cartesian coordinates.

Here you have a table that you can build by your self and use the pairs to draw the graph (either cartesian or polar coordinates).

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In both of the attached graphs you can see that the left side is equal to the right side, but the upper side is not equal to the bottom side.

Therefore, the graph is symmetric about the y-axis.





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