Multiplication and factorization A 2-B 2 = (A+B) (A-B) A 3+B 3 = (A+B) (A 2-AB+B 2) A 3-B 3 = (A 2+AB+) => -b ≤ a ≤ b | a-b |≥| a |-b |-a |≤ a ≤| the solution of a quadratic equation -b+√(B2-4ac)/2a-b-√(B2-4ac)/2a root and coefficient x6544. 0 Note: The equation has two unequal real roots b 2-4ac 0. Parabolic standard equation Y 2 = 2pxy2 =-2pxyStraight prism lateral area S=c*h Oblique prism lateral area S=c'*h Regular pyramid lateral area S= 1/2c*h' Regular prism lateral area S =1/2. Surface area of L sphere S=4pi*r2 cylindrical lateral area S=c*h=2pi*h Conical lateral area formula s= 1/2*l*r Conical volume formula V= 1/3*S*H Conical volume formula V= 1/3*pi*r2h Oblique prism volume V.

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