Question

(9ab2 – a-b) – (2ab2 – 7a-b2 + 4a²b)

please anyone answer my question step-by-step. plz and if you give useless answers then I will report it​

Answer 1

$(9a {b}^{2} - a - b) - (2a {b}^{2} - 7a - {b}^{2} + 4 {a}^{2} b)$

$\therefore 7a {b}^{2} - 4 {a}^{2} b + {b}^{2} + 6a - b$

Answer 2

Answer:

aap mumbai me kaha rehti ho yrr