Math, asked by guddiagarwal2018, 11 months ago

factorise-
 {2a}^{2}  {b}^{2}  + ab - 45

Answers

Answered by amitkumar44481
1

 \red{\large {\underline{ \underline{ \star \: {Given:-}}}}}

Factorise \:  \:  \:  \:  \:  \: </p><p>{2a}^{2} {b}^{2} + ab - 45.

 \red{\large {\underline{ \underline{ \star \: {Solution:-}}}}}

2 {a}^{2}  {b}^{2}  + ab - 45. \\  \\  \implies 2 {a}^{2}  {b}^{2}  + 10ab  - 9ab - 45. \\  \\  \implies 2ab(ab + 5) - 9(ab + 5). \\  \\  \implies (2ab - 9)(ab  + 5). \\  \\  \implies ab =  \frac{9}{2} \:  \:  \:  \:  \:  \: and \:  \:  \:  \:  \:  \:  - 5.

Attachments:
Similar questions