Question

Asked Feb 1, 2019

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Consider the equation (4x2 + 1)2 + 4(4x2 + 1) + 4 = 0. If the substitution u = is made, then the equation becomes u2 + 4u + 4 = 0.

Step 1

The equation is on the board .

Let u= 4x²+1. So we substitute u in the given equation, and we will get u²+4u+4=0

Step 2

Now we solve the equation for u . ...

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