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What is the solution to the system of linear equations? 4x+3y=54 3x+9y=108

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What is the greatest common monomial factor of the expression

36x5y3+27x4y?

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Factor. x2+3x−18

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x2+3x−18= ( )( )

Answer :

tonb
[Would be better if you submit these as separate questions]

4x+3y=54
3x+9y=108 
multiply upper by 3 and subtract from lower:

3x - 12x = 108 - 162
9x = 54
x = 6
y = 10

2nd one is 36xy, see other question.

x²+3x-18 factors as (x+6)(x-3)

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