Olalekan M.
asked • 05/14/13its complicated
4x-12/x2 +4x-21
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2 Answers By Expert Tutors
Zoltan B. answered • 05/14/13
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Researcher whose work has been presented at Ivy League venues
If we assume that Nataliya is right and the question is
(4x - 12) / (x2 + 4x - 21)
We can simplify it like so
(2x-3.46)/(x+2x-4.58): This takes the square root of your original equation
Amanda A. answered • 05/15/13
Tutor
4.9
(8)
Experienced Teacher and Education Professional w/ Test-Prep Experience
You need to factor out the numerator and denominator in order to simplify.
Original: (4x-12)/(x^2+4x-21)
Factor Top: [4(x-3)]/(x^2+4x-21)
Factor Bottom: [4(x-3)]/[(x-3)(x+7)]
Cancel like terms: [4(x-3)]/[(x-3)(x+7)]
Simplified term: 4/(x+7)
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Nataliya D.
Olalekan, you have to use parenthesis! Is your question to simplify the expression
(4x - 12) / (x2 + 4x - 21) ?
05/14/13