Question 1 Report
Factorize a2−b2−4a+4
Answer Details
The trinomial = a2−4a+4 a 2 − 4 a + 4 a2−b2−4a+4=(a2−4a+4)−b2 a 2 − b 2 − 4 a + 4 = ( a 2 − 4 a + 4 ) − b 2 (a2−2a−2a+4)−b2 ( a 2 − 2 a − 2 a + 4 ) − b 2 a(a−2)−2(a−2)−b2 a ( a − 2 ) − 2 ( a − 2 ) − b 2 (a−2)2−b2 ( a − 2 ) 2 − b 2 (a−2+b)(a−2−b)
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