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Dovator [93]
3 years ago
11

- Factorise 121y² - m²​

Mathematics
1 answer:
Otrada [13]3 years ago
6 0

Answer:

\boxed{ \bold{ { \boxed{ \sf{(11y + m)(11y - m)}}}}}

Step-by-step explanation:

\sf{121 {y}^{2}  -  {m}^{2} }

\longrightarrow{ \sf{ {(11y)}^{2}  -  {(m)}^{2} }}

Use the formula of a² - b² = ( a + b ) ( a - b )

\longrightarrow{ \sf{(11y + m)(11y - m)}}

Hope I helped!

Best regards

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