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Anna35 [415]
3 years ago
14

The area of a square is 4x^2+28x+49. What expression represents the length of each side of the square?

Mathematics
1 answer:
kipiarov [429]3 years ago
7 0

Answer:4x^2 +28x +49=(2x +7)^2

Step-by-step explanation:

a2±2ab+b2=(a±b)2

In this case

a=2x and b=7 ...

4x2+28x+49=(2x)2+(2⋅

(2x)⋅

7)+72=(2x+7)2

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If g(x)=x+1/x-2 and h(x)=4-x what is the value of (g•h)(-3)
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3 0
3 years ago
a recent survey determained that 7 out of 9 students eat school lunch at least once a week. if 54 students were surveyed how man
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