Question

2a2 - 3ab + 5b2 frorn 5u2 - 8ab - 2b2​

Answer 1

Answer:

3a² + 5ab -7b²

Step-by-step explanation:

5a² - 8ab - 2b² - (2a² -3ab + 5b²)

= 5a² -2a² -8ab +3ab -2b² -5b²

= 3a² +5ab -7b²

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Answer 2

2a - 5b)•(a + b)

Step-by-step explanation:

 (1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

STEP1:Equation at the end of step 1

((2 • (a2)) - 3ab) - 5b2

STEP 2 :

Equation at the end of step2:

(2a2 - 3ab) - 5b2

STEP3:Trying to factor a multi variable polynomial

 3.1    Factoring    2a2 - 3ab - 5b2 

Try to factor this multi-variable trinomial using trial and error 

 Found a factorization  :  (2a - 5b)•(a + b)