Can someone please help me with this. Please show all work please thank you so much

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Use sigma notation to represent the following series for 9 terms.