Calculation: 2011 times of (- 2) + 2010 times of (- 2) =? Try to explain that three times of 99 - 99 can be divided by 98 Decomposition factor: X & sup2; - 9 =? x²+2x+1=?

Calculation: 2011 times of (- 2) + 2010 times of (- 2) =? Try to explain that three times of 99 - 99 can be divided by 98 Decomposition factor: X & sup2; - 9 =? x²+2x+1=?

2011 times of (- 2) + 2010 times of (- 2) = 2 ^ 2010-2 ^ 2011 = 2 ^ 2010 * (1-2) = - 2 ^ 2010
99 ^ 3-99 = 99 ^ 2 (99-1) = 99 ^ 2 * 98 with factor 98
x^2-9=(x-3)*(x+3)
x^2+2x+1=(x+1)^2

Elden Ring Premiere

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