document.write( "Question 210764: square root of x times ((the square root of x)+1)) times ((7 times the aquare root of x)-4) \n" ); document.write( "

Algebra.Com's Answer #159451 by RAY100(1637) $\"\"$ $\"About$

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distribute first multiplication
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\n" ); document.write( "(x +sqrt x) * (7sqrtx -4)
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\n" ); document.write( "use FOIL to distribute
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\n" ); document.write( "7xsqrt x -4x +7x -4sqrt x
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\n" ); document.write( "collect like terms
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\n" ); document.write( "7x^(3/2) +3x -4x^(1/2)
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\n" ); document.write( "check,,let x=2,,,both answer and original = 20.13,,,,,,ok
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