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how do you get 89, 91, 93, 94, 97, and 98 with only using 17, 1, 2, and 4?

One each question you can only use the numbers once (17, 1, 2, 4) to get the answers (89, 91, 93, 94, 97, 98). You must follow the p.e.n.d.a.s. rule. Please answer asap. Thank you for your time.

I have a program that solves these, and I only found these two,
and both are a bit of a stretch, using factorial for 89
and exponentiation for 98.

89 = 17 + (1+2) * 4!
98 = 17 + (1+2) ^ 4

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