SOLUTION: factor to the nearest tenth
x^2+7xy-18y^2
Algebra.Com
Question 55371: factor to the nearest tenth
x^2+7xy-18y^2
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
(x___y)(x___y)
Two numbers that multiply to get -18 (c), but add together to get 7 (b) are:
9 and -2
9*-2=-18 and 9+(-2)=7
Check by foiling:
(x+9y)(x-2y)
x(x)+x(-2y)+9y(x)+9y(-2y)
We're right!!!
Happy Calculating!!!
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