Assignment:
Q1. If the sides of a square are lengthened bt 5cm, the area becomes 169cm2. Find the length of a side of the original square.
Q2.4b2 + 49 - 28b =
Q3.28b2 + 196 bt + 343t2 (factor completely)
Q4. Solve 25x4 - 25x2 + 6 = 0
Q5. Solve x2 + 6x - 4 = 0
Provide complete and step by step solution for the question and show calculations and use formulas.