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Sagot :
Answer :
[tex]\underline{\boxed{\sf{-7x^2 - \frac{13}{10} x +5}}}[/tex]
Solution :-
[tex]\sf{(-11x^2 + 1.4x - 3) + (4x^2 - 2.7x + 8)}[/tex]
Remove the parentheses:
[tex]\sf{-11x^2 + 1.4x - 3 + 4x^2 - 2.7x + 8}[/tex]
Convert decimal to fraction:
[tex]\sf{-11x^2 + \frac{14}{10} x - 3 + 4x^2 - \frac{27}{10} x + 8}[/tex]
Reduce fraction to the lowest term by canceling the greatest common factor:
[tex]\sf{-11x^2 + \frac{7}{5} x - 3 + 4x^2 - \frac{27}{10}x + 8}[/tex]
Combine like terms:
[tex]\sf{-7x^2 - \frac{13}{10} x +5}[/tex]
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