Brackets/ Common factors
a (b + c + d) = ab + ac + ad
(a + b)(c + d) = ac + ad + bc + bd
(a + b)^2 = (a + b)(a + b) = a^2 + 2ab + b^2
(x + y + z)(a + b + c + d) = x(a + b + c + d) + y(a + b + c + d) + z(a + b + c + d)
(y + a)^2 (x - a)^3 + (x - a)^2 = (x - a)^2((y + a)^2 (x - a) + 1)
Algebraic fractions
a/x + b/x + c/x = a + b + c/x
ax + ay/az = a(x + y)/az = x + y/z
Comments
No comments have yet been made