Question

Subtract 5a – 7ab + 4b from

12a – 9ab + 5b .​

Answer 1

Answer:

( 12a-9ab+5b) - (5a-7ab+4b)

=7a-2ab+b

Step-by-step explanation:

you know that

if — — = +

— + = —

Answer 2

Answer:

$\huge\pink{= 7a - 2ab + b}$

Step-by-step explanation:

$= 12a - 9ab + 5b - (5a - 7ab \: + 4b)$

$= 12a - 9ab + 5b - 5a + 7ab - 4b \\ = 7a - 2ab + b$

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