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(x-5)(x+9) = x^2 + 4x - 45
F First terms x^2
O Outside terms 9x
I Inside terms -5x
L Last terms -45
(y-8)(y-6) = y^2 - 14y + 48
F First terms y^2
O Outside terms -6y
I Inside terms -8y
L Last terms 48
(2x+1)^2 = (2x+1)(2x+1) = 4x^2 + 4x + 1
F First terms 4x^2
O Outside terms 2x
I Inside terms 2x
L Last terms 1
