SOLUTION: square root of x times ((the square root of x)+1)) times ((7 times the aquare root of x)-4)

SOLUTION: square root of x times ((the square root of x)+1)) times ((7 times the aquare root of x)-4)

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Question 210764: square root of x times ((the square root of x)+1)) times ((7 times the aquare root of x)-4)
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
distribute first multiplication
.
(x +sqrt x) * (7sqrtx -4)
.
use FOIL to distribute
.
7xsqrt x -4x +7x -4sqrt x
.
collect like terms
.
7x^(3/2) +3x -4x^(1/2)
.
check,,let x=2,,,both answer and original = 20.13,,,,,,ok

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