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Popular >

z^2-40z+340<= 4

Solution

z^{2} - 40 z + 340 \leq 4

Solution

12 \leq z \leq 28

+1

Interval Notation

[12, 28]

Solution steps

z^{2} - 40 z + 340 \leq 4

Rewrite in standard form

z^{2} - 40 z + 336 \leq 0

Factor

z^{2} - 40 z + 336 : (z - 12) (z - 28)

(z - 12) (z - 28) \leq 0

Identify the intervals

12 \leq z \leq 28

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Frequently Asked Questions (FAQ)

What is z^2-40z+340<= 4 ?
The solution to z^2-40z+340<= 4 is 12<= z<= 28