3 years ago

Which of the following is equivalent to the radical expression below when

Mathematics

1 answer:

Ratling [72]3 years ago

8 0

Answer:

B in the photo

Step-by-step explanation:

another way to write the problem:

square root is also taking the 1/2 power:

$(4x)^{1/2} * (x+7)^{1/2} \\$

since they are raised to the same power:

$(4x * (x+7))^{1/2}\\(4x^2 + 28x)^{1/2}\\\\=\sqrt{4x^2 + 28x}$

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