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Sagot :
Answer:
-5a - 4
Step-by-step explanation:
Hey there! To evaluate [tex]\displaystyle \large{7a-8-12a+4}[/tex], we can do by adding up/subtracting like-terms.
Like-terms are terms that have same appearance. It must also have same degree, power and everything to be considered as like-terms.
From our expression, rearrange the terms.
[tex]\displaystyle \large{7a-12a-8+4}[/tex] , then we combine [tex]\displaystyle \large{7a-12a = -5a}[/tex] and [tex]\displaystyle \large{-8+4 = -4}[/tex]
That leaves us with [tex]\displaystyle \large{\bold{-5a-4}}[/tex]
If you have any questions regarding polynomial operation, you can always let me know in the comment!
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