NEED HELP WITH THESE QUESTIONS

"I hope this helps you a little bit!" -noodlyramen
23. (7 - 11)^2 / (2 - 4)^2 24. x^3 + 3x - 1
= -4^2 / -2^2 = 2^3 + 3(2) - 1
= 16 / 4 = 8 + 3(2) - 1
= 4 = 8 + 6 - 1
= 14 - 1
= 13
25. y + 7 = 2 26. -9x = 81
= 2 - 7 = y = 81 / (-9)
y = -5 x = -9
27. 3x - (5x + 3) + 4
= -2x + 3 + 4
= -2x + 7