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Sagot :
Answer:
2nd option
Step-by-step explanation:
(5x² - 4x - 1) - (- 4x² - 4)
remove first set of parenthesis and distribute second set by - 1
= 5x² - 4x - 1 + 4x² + 4 ← collect like terms
= 9x² - 4x + 3
given ,
[tex](5x^{2}-4x-1)-(-4x^{2}-4)[/tex]
=> [tex] 5x^{2}-4x-1+4x^{2}+4[/tex]
=> [tex]9x^{2}-4x+3[/tex]
hence option two is correct
[tex](5x^{2}-4x-1)-(-4x^{2}-4)[/tex]
=> [tex] 5x^{2}-4x-1+4x^{2}+4[/tex]
=> [tex]9x^{2}-4x+3[/tex]
hence option two is correct
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