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simply the expression

0 votes

49 = (3x+8)^2/ x^2

asked Sep 8, 2018 in ALGEBRA 1 by mathgirl Apprentice

1 Answer

0 votes

Given Equation

49  =  (3x + 8)^2 / x^2

49x^2  =  (3x + 8)^2

49x^2  =  (3x)^2 + (8)^2 + 2(3x)(8)

49x^2  =  9x^2 + 64 + 48x

49x^2  -  (9x^2 + 64 + 48x)  =  0

49x^2 - 9x^2 - 64 - 48x  =  0

49x^2 - 9x^2 - 64 - 48x  =  0

40x^2 - 48x - 64  =  0

8(5x^2 - 6x - 8 )  =  0
 
5x^2 - 6x - 8   =  0
Answer :
 
5x^2 - 6x - 8   =  0
answered Sep 8, 2018 by homeworkhelp Mentor

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