nazario57
nazario57
22-04-2018
Mathematics
contestada
What’s the answer??
Respuesta :
zaz3
zaz3
22-04-2018
use parentheses for M and N
[tex](5x {}^{2} + 7x - 4 )- ( - 3 {x}^{2} - 4x + 5)[/tex]
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remove parentheses
[tex]5 {x}^{2} + 7x - 4 + 3 {x}^{2} + 4x - 5[/tex]
一一一一一
add like terms
[tex]8 {x}^{2} + 11x - 9[/tex]
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