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Simplification: 1 − a − 1a △ (AA + 2 − 1A2 + 2a)
The original formula = 1-A − 1a × a (a + 2) (a + 1) (a − 1) = 1-A + 2A + 1 = - 1A + 1
Calculate (A-2) (the second power of a + 2A + 4)=
(A-2) (the second power of a + 2A + 4) = A & # 179; - 2 & # 179; = A & # 179; - 8
In the top right corner of my answer, click comment, and then you can choose satisfied, the problem has been solved perfectly
A + B-2 = 2, 2a-b + 4 = 3 how to calculate a and B
Add the two equal signs to get 3A + 2 = 5 and get a = 1; bring in a + B-2 = 2 and get b = 3. The solution of binary equation must be eliminated first
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