Textbook...?

does anyone know which maths textbook this question comes from? "1. Find the sum of 4a虏-3a-7 and 3+6a-5a虏"Textbook...?
4a虏-3a-7 + 3+6a-5a虏 = -a虏+3a-4Textbook...?
no..but do you want the answer?

-a^2+9a-4



there could be more than one textbook having that question..Textbook...?
it came from a ALBEGRA BOOK...

don't know specifically the title



here is the answer -a^2+3a-4
wow...looks like an algebra book, good luck with the title, because I have no idea

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