marwizzle marwizzle

11-09-2016
Mathematics

contestada

how to factor 8a^2-2ab-21b^2

please help:)))

Respuesta :

benny123434 benny123434

11-09-2016

Equation at the end of step 1 : ((8 • (a2)) - 2ab) - (3•7b2) Step 2 :Equation at the end of step 2 : (23a2 - 2ab) - (3•7b2) Step 3 :Trying to factor a multi variable polynomial :

3.1 Factoring 8a2 - 2ab - 21b2

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

Found a factorization : (4a - 7b)•(2a + 3b)

Final result : (4a - 7b) • (2a + 3b)

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