Answer:
1.
2. (same procedure with number 1)
x = 7
3. x = 11.31
4. x = 10.39
5. x = 11
6. x = 13
7. x = 8.94
8. x = 7.94
9. divide both side by 5
magiging ganto sya (x^2 = 25) tapos square root
x = 5
10. same procedure ng number 9
x = 6.63
11. x = -4, 9 (transpose the numbers)
12. x = -1/2, 3
13. x = -2/3, 4/3
14. x = -2/3, 1/2
15.
x = 1/2, 0
18.
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Answers & Comments
Answer:
1.![x^{2} =16\\\\\sqrt{x} = \sqrt{16} \\\\x = 4 x^{2} =16\\\\\sqrt{x} = \sqrt{16} \\\\x = 4](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%3D16%5C%5C%5C%5C%5Csqrt%7Bx%7D%20%3D%20%5Csqrt%7B16%7D%20%5C%5C%5C%5Cx%20%3D%204)
2. (same procedure with number 1)
x = 7
3. x = 11.31
4. x = 10.39
5. x = 11
6. x = 13
7. x = 8.94
8. x = 7.94
9. divide both side by 5
magiging ganto sya (x^2 = 25) tapos square root
x = 5
10. same procedure ng number 9
x = 6.63
11. x = -4, 9 (transpose the numbers)
12. x = -1/2, 3
13. x = -2/3, 4/3
14. x = -2/3, 1/2
15.![x=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:1\cdot \:0}}{2\cdot \:1} \\\\x=\frac{-\left(-2\right)\pm \:2}{2\cdot \:1} \\\\x_1=\frac{-\left(-2\right)+2}{2\cdot \:1},\:x_2=\frac{-\left(-2\right)-2}{2\cdot \:1}\\\\ ></p><p>x = 2, 0</p><p>16. <img src=](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-%5Cleft%28-2%5Cright%29%5Cpm%20%5Csqrt%7B%5Cleft%28-2%5Cright%29%5E2-4%5Ccdot%20%5C%3A1%5Ccdot%20%5C%3A0%7D%7D%7B2%5Ccdot%20%5C%3A1%7D%20%5C%5C%5C%5Cx%3D%5Cfrac%7B-%5Cleft%28-2%5Cright%29%5Cpm%20%5C%3A2%7D%7B2%5Ccdot%20%5C%3A1%7D%20%5C%5C%5C%5Cx_1%3D%5Cfrac%7B-%5Cleft%28-2%5Cright%29%2B2%7D%7B2%5Ccdot%20%5C%3A1%7D%2C%5C%3Ax_2%3D%5Cfrac%7B-%5Cleft%28-2%5Cright%29-2%7D%7B2%5Ccdot%20%5C%3A1%7D%5C%5C%5C%5C)
x = 1/2, 0
18.