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The simplest thing to do here is to express "square root of x" as "x to the power 1/2". Then you can multiply the pure numbers together, as well as the powers of x.

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7y ago
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7y ago

7*sqrt(x) + 4*x^2 cannot be simplified, nor can it be evaluated without the value of x.

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Q: What is 7 sq rt of x plus 4 times x squared?
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