SOLUTION: 1)
Solve by factoring and using the principle of zero products.
x2 + 9x = 0
2)
Factor completely.
x2 - 50xy + 625y2
3)
Factor completely.
3x3 + 24x2 + 48x
4)
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Question 339673: 1)
Solve by factoring and using the principle of zero products.
x2 + 9x = 0
2)
Factor completely.
x2 - 50xy + 625y2
3)
Factor completely.
3x3 + 24x2 + 48x
4)
Factor completely.
x4 - 24x2 - 25
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
1) Solve by factoring and using the principle of zero products.
x2 + 9x = 0
Hint: both terms have a factor of x
--------------------
2) Factor completely.
x2 - 50xy + 625y2
Hint: the 1st and last terms are squares.
3) Factor completely.
3x3 + 24x2 + 48x
Factor out a 3x. Then the 1st and last terms are squares.
-----------
4) Factor completely.
x4 - 24x2 - 25
It will be (x^2 + a)*(x^2 + b)
ab = -25, so the signs are different.
a+b = -24
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