Question

-m²+ 5mn from 4m² - 3mn + 8​

Answer 1

Answer:

wat i cant understand

Step-by-step explanation:

how do i know da step i dont even know dis?!!!!

Answer 2

$\huge\tt{\bold{\underline{\underline{Question᎓}}}}$

-m²+ 5mn from 4m² - 3mn + 8

$\huge\tt{\bold{\underline{\underline{Answer᎓}}}}$

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know :-

whenever in Question said substract any value from this ( any value ) then we have to subtract first value from those value which is written after from.

e.g=>substract 2 from 4 ;here 4 is written after from so,4-2=2

$= 4 {m}^{2} - 3mn + 8 - ( - {m}^{2} + 5mn)$

$= > 4 {m}^{2} - 3mn + 8 + {m}^{2} - 5mn$

$= > 4 {m}^{2} + {m}^{2} - 3mn - 5mn + 8$

$= > 5 {m}^{2} - 8mn + 8$

$\bold{= > 5 {m}^{2} - 8(mn - 1)}$

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