How do I solve 4x^2+4x+1=49 for x?

Perfect square trinomials.
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1 Answer

 

Use the quadratic formula
ax^2+bx+C
(-b+SQRT(b^2-4ac))/2a
and
(-b-SQRT(b^2-4ac))/2a
I got x=3 and x=-4
by Level 5 User (14.8k points)

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