SOLUTION: Hi. I need help with the equation below. I have no idea where to begin. This is the quadratic equations from India.
{{{ x^2+12x-64=0 }}}
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Question 451998: Hi. I need help with the equation below. I have no idea where to begin. This is the quadratic equations from India.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x^2+12x-64=0
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Use Inverse-FOIL:
x^2 + 16x-4x -64 = 0
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Factor the 1st 2 and last 2 terms separately to get:
x(x+16) -4(x+16) = 0
----
Factor again:
(x+16)(x-4) = 0
Solve:
x = -16 or x = 4
========================
Cheers,
Stan H.
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