SOLUTION: Simplify (x+3)^2-(2x-1)^2

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Question 898307: Simplify (x+3)^2-(2x-1)^2
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Perform the multiplications, combine like terms.

x%5E2%2B6x%2B9-%284x%5E2-4x%2B1%29
x%5E2%2B6x%2B9-4x%5E2%2B4x-1
highlight%28-3x%5E2%2B10x%2B8%29


Sometimes, an extra step or more is useful to help you find the correct result. If you need these steps, THEN DO THEM! Just because this work here was done in only three steps does not mean that you must hold yourself to some restricted number of steps.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify (x+3)^2-(2x-1)^2


%28x+%2B+3%29%5E2+-+%282x+-+1%29%5E2

[%28x+%2B+3%29+-+%282x+-+1%29][%28x+%2B+3%29+%2B+%282x+-+1%29]

%28x+%2B+3+-+2x+%2B+1%29%28x+%2B+3+%2B+2x+-+1%29

%28-+x+%2B+4%29%283x+%2B+2%29

-+3x%5E2+-+2x+%2B+12x+%2B+8

highlight_green%28-+3x%5E2+%2B+10x+%2B+8%29