SOLUTION: what is (x+1)(x+5)=(x+2)(x+3) i need help with.. 1.x^2-1 2.x^2-9 3.x^2+4

Question 302105: what is (x+1)(x+5)=(x+2)(x+3)
i need help with..
1.x^2-1
2.x^2-9
3.x^2+4
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
): what is (x+1)(x+5)=(x+2)(x+3)
Use Foil on both sides to get:
x^2+6x+5 = x^2 + 5x+6
x = 1
------------------------
i need help with..
1.x^2-1 = (x-1)(x+1)
--------
2.x^2-9 = (x-3)(x+3)
----------
3.x^2+4 = prime or
= (x+2i)(x-2i)
==================
Cheers,
Stan H.
============

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