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anonymous
 3 years ago
How do you solve 5x²  20x² (GCF)
anonymous
 3 years ago
How do you solve 5x²  20x² (GCF)

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0GCF means Greatest Common Factor.

AravindG
 3 years ago
Best ResponseYou've already chosen the best response.0@allea_marie reply pls

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0There needs to be more here, for there to be something to solve.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Yes it stands for Greatest Common Factor

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0so what are the two numbers that you want to find the greatest common factor of?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0But why do you need GCF to solve this? It is quite simple. Just subtract 520 and carry over the x^2. That would be 15x^2

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Okay thanks, how would you solve 2x²  21x=54

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0that one can be solved by factorising the polynomial.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[ 2x^2  21x =54 \] \[2x^2  21x  54 = 0 \] Now you want to solve: \[(2x + a)(x +b) = 2x^2  21x  54 \] Note that you must have \[ a*b = 54 \]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0this won't always work so easily. But I can see here that it does.
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