SOLUTION: Factor each expression. 8x^2

SOLUTION: Factor each expression. 8x^2 - 50 Please help!

Question 339089: Factor each expression.
8x^2 - 50
Please help!
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Factor:

The facors of 8 are:
1X8 = 8
2X4 = 8
The factors of 50 are:
1X50 = 50
2X25 = 50
5X10 = 50
2X5X5 = 50 Discard this as you need only two factors.
Notice that there is no middle term in the given expression so in the two factors of the form:
you must have a*d = b*c in order for the middle term to drop out.
so you would choose:
a = 4 and d = 5
b = 2 and c = -10 so you get...
and when you FOIL these...
=
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