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Discover Questions

Current of 10 A flows to the opposite directions in the follwing wires. Find the total magnetic field in the "P"? Find the two x-intercepts of f(x)=x^2-4x and show that f'(x)=0 somewhere between them? How would the expression (x^2+4)(y^2+4) be rewritten using Two Squares? Polynomial Identities question? Why canâ€™t you divide by 0?