standard_description: Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.
problem_activity: Problem 1
Find the product.
$${(x-3)(x^2-2x+3)}$$
Once we find the product, how would we work backwards to get both factors again?
Problem 2
What is the other factor you would multiply
$${x-2}$$
by to get the polynomial
$${x^4-4x^2-5x+10}$$
?


aligns: no