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Original practice tasks · Math · High school . Class 1

Powers and Elements — tasks with solutions

Start with the easier exercises and work your way up. Every task has a hint and a full step-by-step solution — try it on your own first, then unlock the solution and compare.

Easy

6

Medium

8

Hard

2

Task 12 · medium

The condition of the actual element

For which real x expression ((x-2) is defined?

Hint and solution →

Task 14 · medium

Element and equation solutions

Enter the number of the x2 = 49 and all the actual solutions of the x2 = 49 equation.

Hint and solution →

Task 15 · hard

Submitted percentage

The amount of PLN 1000 increases by 5% per year. How much is it after 2 years with an annual capitalization, no taxes and no fees?

Hint and solution →

Task 16 · hard

Multiple percentage decrease

The initial value is 2000. In each of the three periods it drops by 10%. Calculate the final value.

Hint and solution →

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