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Determine the roots of the following quadratic equations. With solution
1. x↑2=9
3. x↑2=18
5. x↑2 =32
7. 2x↑2=12
9. x↑2 =41
Determine the roots of the following quadratic equations. With solution
1. x↑2=9
3. x↑2=18
5. x↑2 =32
7. 2x↑2=12
9. x↑2 =41
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Answer:
1. x²=9
√x² = √9
x = 3
3. x²=18
√x² = √18
x = 3√2
5. x² =32
√x² =√32
x = 4√2
7. (2x²=12) ➗ 2
√x² = √6
x = √6 or 2.449
9. x² =41
√x² =√41
x = √41 or 6.403
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