Polynomial equations have the form P (X) = 0, where P is a polynomial. Linear equations have the form a (x) + b = 0, where a is a linear function and b is a vector. To solve them, one uses algorithmic or geometric techniques, coming from linear algebra or mathematical analysis. Changing the domain of a function can change the problem considerably.
When piecing the backing of a quilt, avoid using a center seam. When a quilt is folded in half, the extra bulk of the center seam along the fold line stresses the quilt, causing the quilt top and batting to break down. Instead, cut one of the lengths of backing fabric into two long, narrow pieces. Stitch a narrow piece to each side of the full-width piece. The quilt should be loaded into the quilting frame with the seams running the same direction as the rail does (also called the belly bar) .
I took the pieces that were damaged out replaced them, and replaced the batting and put a patch on the back. The quilting stitches were taken out with a small crochet hook,and then I re quilted the lines. The only place you were able to tell somewhat on the back if you looked for it. My quilt was a french braid.