Book Maths Puzzle Algebra

Directions: Use the quadratic formula to find the roots of the equation.

y^2 - 5y + 6 = 0

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Book Other Question

For the following 3rd order polynomial equation, how do I solve for x?
y = a + bx + cx^2 + dx^3 What does an apostrophe mean in an equation? For example: 3/84a' 5/63b